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STD Testing in Seattle, WA: Free, Same-Day & Confidential

In Seattle, King County reported chlamydia runs about 34% lower than the US average. For any resident in Seattle, Washington testing before starting a new relationship or ongoing care, there are trade-offs to weigh between clinics and labs. The clinics may bill insurance or offer sliding-scale fees, while many private labs let you pay a flat self-pay price. Check the list below for options.

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  • Clinics, labs & at-home kits compared
  • Free & low-cost options included
  • Backed by CDC, CMS & Census data
  • Editorially reviewed

Available testing centers

STD testing near Seattle, WA

12 testing options are listed for Seattle, WA. The nearest, ZoomCare, is about 0.3 miles away. Compare community and public clinics, private labs, and at-home kits below.

How to read these listings

Listings tagged Community health center are federally funded health centers and rural clinics that treat everyone regardless of insurance or ability to pay: required to bill on a sliding fee scale and provide confidential care, and in many states minors may consent to their own STI testing. A Title X tag flags centers funded for confidential family-planning services; confirm current participation when you call.

Source: CMS FQHC & Rural Health Clinic enrollment files (data.cms.gov), refreshed quarterly. Title X status reflects the latest OPA grantee list.

Premium Partner
Quest Diagnostics

Quest Diagnostics

Most popular Results in 1–2 days
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Review sources

  • Google122
  • EasySTD5
Rated 3.4 out of 5 from 127 reviews

Address
1101 Madison Street, Seattle, WA 98104 0.8 miles away
Opening hours
  • Monday 7:00 AM – 4:00 PM
  • Tuesday 7:00 AM – 4:00 PM
  • Wednesday 7:00 AM – 4:00 PM
  • Thursday 7:00 AM – 4:00 PM
  • Friday 7:00 AM – 4:00 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner
Labcorp

Labcorp

Results in 1–2 days
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Review sources

  • Google107
  • EasySTD5
Rated 2.5 out of 5 from 112 reviews

Address
550 17th Avenue, Seattle, WA 98122 1.2 miles away
Opening hours
  • Monday 8:30 AM – 5:00 PM
  • Tuesday 8:30 AM – 5:00 PM
  • Wednesday 8:30 AM – 5:00 PM
  • Thursday 8:30 AM – 5:00 PM
  • Friday 8:30 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Most reviewed 0.3 miles

ZoomCare

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Review sources

  • Google858
  • EasySTD5
Rated 4.4 out of 5 from 863 reviews

ZoomCare in Seattle runs appointment-based STI care covering HIV, syphilis, gonorrhea, chlamydia, hepatitis B, and hepatitis C on standard fees with insurance accepted; same-visit treatment is available for bacterial infections, and prevention extends to PrEP and PEP.

Read full overview

Tenofovir-Based PrEP Prescribed and Monitored Here

ZoomCare prescribes PrEP, including tenofovir-based daily regimens, and manages PEP, meaning ongoing HIV prevention stays with a single provider rather than requiring a separate specialist visit. That continuity keeps monitoring labs, prescription renewals, and any dosing questions inside the same clinical relationship.

Hepatitis B and C Testing Closes the Referral Gap

Leaving a clinic with gonorrhea and chlamydia results but no hepatitis answer often means booking a second appointment elsewhere, a gap where hepatitis B or C goes undetected longer than it should. ZoomCare's panel in Seattle includes both hepatitis B and hepatitis C tests alongside the standard bacterial and HIV workup, so the full picture comes back together.

Tests & treats PrEP
Address
531 Broadway East, Suite 10 Seattle, WA 98102
Booking
Appointment required
Opening hours
  • Monday Call to confirm
  • Tuesday Call to confirm
  • Wednesday Call to confirm
  • Thursday Call to confirm
  • Friday Call to confirm
  • Saturday 9:00 AM – 6:00 PM
  • Sunday 9:00 AM – 6:00 PM
Website
Best for free testing 0.4 miles

Seattles LGBTQ Wellness Center

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Review sources

  • Google53
  • EasySTD5
Rated 4.1 out of 5 from 58 reviews

Seattle's LGBTQ Wellness Center provides every service (rapid and conventional HIV testing, hepatitis C, gonorrhea, chlamydia, and syphilis) at no charge, with appointments required and same-visit treatment available for bacterial infections.

Read full overview

Zero-Dollar Care Across Every Service Line

The no-fee structure at Seattle's LGBTQ Wellness Center applies uniformly: STI testing, HIV test counseling, hepatitis A and B vaccination, and hepatitis C screening all carry a $0 cost. Donations are accepted, but no service is priced, tiered, or withheld based on payment.

Spanish Covers the Full Clinical Scope Here

Seattle's LGBTQ Wellness Center delivers its services in Spanish: not limited to intake paperwork, but extended through STI prevention education, HIV counseling, and hepatitis prevention programming. That single-language pairing means clinical conversations happen with the same depth available in English.

PrEP for the Uninsured, Sourced on Site

Without a clinic that holds PrEP access directly, uninsured patients often face a separate prescriber, a separate pharmacy program, and weeks of delay. Seattle's LGBTQ Wellness Center provides PrEP, including coverage pathways for uninsured patients, so that gap stays closed before it opens.

PrEP
Address
400 East Pine Street, Suite 100 Seattle, WA 98122
Booking
Appointment required
Opening hours
  • Monday Closed
  • Tuesday 1:00 PM – 6:00 PM
  • Wednesday 10:00 AM – 6:00 PM
  • Thursday 10:00 AM – 6:00 PM
  • Friday 10:00 AM – 6:00 PM
  • Saturday 9:00 AM – 5:00 PM
  • Sunday Closed
Website
0.6 miles

Swedish

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Review sources

  • Google288
  • EasySTD5
Rated 4.1 out of 5 from 293 reviews

Swedish in Seattle anchors STI care inside a full hospital system, which means gonorrhea, chlamydia, syphilis, and HIV testing run alongside same-visit bacterial treatment, sliding-scale fees, and HPV and hepatitis A/B vaccines: all by appointment, with PrEP and PEP available on-site.

Read full overview

PrEP and PEP Without a Separate Provider Hunt

Swedish carries both PrEP and PEP as standing services, and for someone paying cash without a regular prescribing physician, that means one appointment covers evaluation, prescription, and follow-up monitoring. No separate infectious-disease referral required. Uninsured patients have a dedicated PrEP access pathway as well.

Herpes and Hepatitis C Added to the Standard Panel

Where many panels stop at gonorrhea, chlamydia, syphilis, and HIV, Swedish also runs herpes and hepatitis C testing in the same visit. Hepatitis C is confirmed through RNA or antigen detection rather than antibody screening alone, giving a clearer picture of active infection rather than past exposure.

Tests & treats PrEP
Address
510 Boren Avenue North, Seattle, WA 98109
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Highest rated 0.8 miles

Seattle Infectious Disease Clinic

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Review sources

  • Google59
  • EasySTD5
Rated 4.5 out of 5 from 64 reviews

Seattle Infectious Disease Clinic runs entirely on a no-fee model, covering HIV, syphilis, gonorrhea, chlamydia, herpes, hepatitis A, B, and C, and TB testing on a sliding scale with Medicaid and insurance accepted. Same-visit treatment is available for bacterial STIs; an appointment is required.

Read full overview

Every Service Carries a Zero Dollar Price

The sliding-scale at Seattle Infectious Disease Clinic bottoms out at nothing, no service, from TB testing to mpox vaccination to hepatitis treatment, carries a mandatory charge. That single operational fact means the full scope of infectious disease care here is priced the same regardless of what you can produce at the window.

Seattle Infectious Disease Clinic prescribes and manages both PrEP and PEP directly, including covering PrEP costs for uninsured patients. No outside physician relationship required to initiate or continue either medication. For anyone paying cash or without a regular prescriber, that standing capability means prevention isn't contingent on a separate referral chain.

Hepatitis C Treatment Runs Through the Clinic Itself

Diagnosis and treatment of hepatitis C both happen inside Seattle Infectious Disease Clinic, clinical staff prescribe and monitor antiviral therapy on-site rather than handing the case off after a positive antibody result. That means treatment timelines and medication management stay within one clinical relationship from the first test forward.

Tests & treats Sliding-scale PrEP
Address
509 Olive Way, Suite 752 Seattle, WA 98101
Booking
Appointment required
Opening hours
  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 8:00 AM – 4:00 PM
  • Friday 9:00 AM – 4:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Community health center 0.8 miles

Seattle Roots Community Health

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Review sources

  • Google33
  • EasySTD3
Rated 3.5 out of 5 from 36 reviews

Seattle Roots Community Health runs on a sliding-scale fee structure with Medicaid, Medicare, and private insurance all accepted, covering gonorrhea, chlamydia, syphilis, herpes, and HIV testing alongside same-visit bacterial treatment: appointments required, and Spanish-language care available throughout.

Read full overview

Spanish Carries Through Every Clinical Step

Spanish at Seattle Roots Community Health isn't limited to intake paperwork: it extends through testing, counseling, treatment, and ongoing HIV management. Clinical conversations about PrEP dosing schedules, vaccine timing, and STI treatment plans happen directly in Spanish, so nothing gets compressed or lost between a patient and their provider.

HIV Treatment Stays Here Under Ryan White Funding

Without Ryan White-funded care in place, a positive HIV test can strand someone between a testing site and a specialist: weeks of waiting, separate billing, and a treatment gap that compounds. Seattle Roots Community Health absorbs that gap entirely: Ryan White funding supports the full arc from initial HIV testing through ongoing medical treatment, all within the same clinic.

People who need PrEP or PEP and leave a clinic without a prescription face a fragmented path: a separate provider appointment, additional delays, and real exposure time unaccounted for. Seattle Roots Community Health prescribes both directly, and uninsured patients can access PrEP through dedicated funding that keeps the medication within reach.

Tests & treats Ryan White HIV care Sliding-scale PrEP
Address
500 19th Avenue East, Seattle, WA 98112
Booking
Appointment required
Opening hours
  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 8:30 PM
  • Wednesday 9:00 AM – 8:30 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
0.8 miles

Pacific Medical Centers

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Review sources

  • Google41
  • EasySTD5
Rated 2.6 out of 5 from 46 reviews

Pacific Medical Centers, a multi-specialty medical system in Seattle, weaves STI care into the same infrastructure as primary care: meaning the standard panel, sliding-scale fees, same-visit bacterial treatment, and appointments are backed by full clinical resources, including PrEP and PEP for prevention.

Read full overview

Pacific Medical Centers prescribes both PrEP and PEP on-site, and because the clinic is a continuing care setting, those prescriptions don't exist in isolation. They're monitored alongside the rest of your health picture, with follow-up built into the same relationship.

Pacific Medical Centers carries hepatitis C treatment on-site, for someone without a regular specialist, paying out of pocket, or simply needing the medication managed without being sent to a separate provider, that standing capability means the path from a positive test to an active prescription doesn't require leaving the building.

The basic four (HIV, syphilis, gonorrhea, chlamydia) are where many testing sites stop; Pacific Medical Centers adds hepatitis A, B, and C to the panel, covering infections that share transmission routes with common STIs but rarely appear on a standard testing menu.

Tests & treats PrEP
Address
1101 Madison Street, Suite 301 Seattle, WA 98104
Booking
Appointment required
Opening hours
  • Monday 7:30 AM – 5:30 PM
  • Tuesday 7:30 AM – 5:30 PM
  • Wednesday 7:30 AM – 5:30 PM
  • Thursday 7:30 AM – 5:30 PM
  • Friday 7:30 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
0.8 miles

Virginia Mason Franciscan Health

No ratings yet

Virginia Mason Franciscan Health in Seattle requires an appointment, so scheduling ahead unlocks the full visit: rapid HIV testing alongside gonorrhea, chlamydia, syphilis, herpes, and hepatitis A, B, and C, plus same-visit treatment for bacterial STIs, on a sliding-scale fee accepted alongside Medicaid and insurance.

Read full overview

PrEP, PEP, and DoxyPEP Prescribed Here Directly

Virginia Mason Franciscan Health holds standing prescribing capability for PrEP, PEP, and DoxyPEP: useful for anyone without a primary care provider already managing their prevention, or paying out of pocket and wanting a single billing relationship rather than multiple specialist visits to assemble a regimen.

A confirmed hepatitis C diagnosis at Virginia Mason Franciscan Health doesn't hand off to a separate gastroenterology or infectious-disease practice: antiviral treatment is managed within the same clinic, meaning the monitoring and medication course stay with the provider who ordered the original test.

Herpes and All Three Hepatitis Types Are on the Panel

The testing panel is structured so that herpes simplex and hepatitis A, B, and C are ordered alongside the standard bacterial four (gonorrhea, chlamydia, syphilis, and HIV) which means a single appointment generates results across infections that a narrower panel would require a separate visit or referral to capture.

Tests & treats PrEP DoxyPEP
Address
1100 9th Avenue, Central Pavilion Level 7 Seattle, WA 98101
Booking
Appointment required
Website
0.9 miles

Capitol Hill Medical

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Review sources

  • Google48
  • EasySTD4
Rated 3.9 out of 5 from 52 reviews

Capitol Hill Medical in Seattle covers gonorrhea, chlamydia, syphilis, and HIV testing with same-visit treatment for bacterial infections and vaccines for HPV and hepatitis A and B: all on an appointment basis, accepted by insurance, and provided at no fee to anyone who walks through the door.

Read full overview

Every Service Runs at Zero Cost

When cost is part of the calculation, a diagnosis can stall into an untreated gap. A vaccine skipped, a treatment delayed. At Capitol Hill Medical, the fee that would break that chain simply doesn't exist: testing, bacterial STI treatment, PrEP, HIV care, and vaccines all carry no charge, regardless of insurance status.

PrEP Prescribed and Monitored On-Site

PrEP at Capitol Hill Medical means a physician prescribes and monitors Truvada or Descovy directly: including the required baseline HIV and kidney-function tests, follow-up labs every three months, and ongoing clinical oversight. PEP is also available, dispensed and managed by the same medical staff who handle HIV care at the clinic.

Tests & treats PrEP
Address
901 Boren Avenue, Suite 705 Seattle, WA 98104
Booking
Appointment required
Opening hours
  • Monday 9:00 AM – 4:30 PM
  • Tuesday 9:00 AM – 4:30 PM
  • Wednesday 9:00 AM – 4:30 PM
  • Thursday 9:00 AM – 4:30 PM
  • Friday 9:00 AM – 2:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Premium Partner
Labcorp

Labcorp

Results in 1–2 days
?

Review sources

  • Google97
  • EasySTD5
Rated 3 out of 5 from 102 reviews

Address
3601 Fremont Avenue North, Seattle, WA 98103 2.4 miles away
Opening hours
  • Monday 8:00 AM – 4:30 PM
  • Tuesday 8:00 AM – 4:30 PM
  • Wednesday 8:00 AM – 4:30 PM
  • Thursday 8:00 AM – 4:30 PM
  • Friday 8:00 AM – 4:30 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner
Quest Diagnostics

Quest Diagnostics

Results in 1–2 days
?

Review sources

  • Google76
  • EasySTD5
Rated 3.3 out of 5 from 81 reviews

Address
1423 Northwest Market Street, Seattle, WA 98107 4.0 miles away
Opening hours
  • Monday 7:30 AM – 4:30 PM
  • Tuesday 7:30 AM – 4:30 PM
  • Wednesday 7:30 AM – 4:30 PM
  • Thursday 7:30 AM – 4:30 PM
  • Friday 7:30 AM – 4:30 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Free tool · not a clinic

When can I test? Exposure-window calculator

Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each STI.

Find your match in 10 seconds

What matters most to you?

What will it cost? Estimate your STD test

Typical out-of-pocket ranges by option, actual cost depends on which tests you need.

  • Public / community clinic

    Free HIV testing is common

    $0–$25
  • Private lab (self-pay)

    Never billed to insurance

    $24–$200
  • At-home kit

    Mailed to your door, private

    From $49
  • Doctor / urgent care

    Often $0 preventive with insurance

    $0–$50 copay

Every other option

More ways to get tested in Seattle, WA

Beyond the dedicated testing centers above: at-home kits by mail, hospital labs certified for STI testing, local clinicians who can order a panel during a regular visit, pharmacies for self-test kits and prescriptions, and online PrEP & treatment.

Test from home

At-home STD testing in Seattle, WA

The nearest testing center is less than a mile away, if you'd rather skip the trip, an at-home kit ships to Seattle, you collect the sample privately, and mail it back to a CLIA-certified lab. Results come online in days, with a clinician available if anything is positive. Same labs as a clinic, no waiting room, and you can read how accurate at-home STD tests are before you order.

Want a free option first? The CDC-supported TakeMeHome program mails free at-home HIV self-test kits, and, in many areas, free STI kits, to your door, with no insurance or payment needed. The paid kits below add broader panels and faster turnaround.

  • In-home collection

    Quest Diagnostics

    Quest Diagnostics

    $79 & up

    Panel:
    8-infection panel incl. chlamydia, gonorrhea, HIV, syphilis, hepatitis & herpes: single tests too
    Sample:
    Quest Mobile: a phlebotomist collects your sample at home
    Results:
    1–3 days, online: physician-reviewed
    • In-home sample collection
    • Nationwide Quest lab network
    • Physician-reviewed results
    • FSA/HSA eligible
  • Best for simplicity & support

    LetsGetChecked

    LetsGetChecked

    $89 & up

    Panel:
    5–6 common STIs incl. chlamydia, gonorrhea, HIV, syphilis & trichomoniasis
    Sample:
    Finger-prick + urine/swab
    Results:
    2–5 days, online
    • 24/7 nurse support
    • Prescription for positives
    • CLIA-certified labs
    • Free shipping both ways
  • Best value: single tests

    Everlywell

    Everlywell

    $49 & up

    Panel:
    Chlamydia & gonorrhea, up to a 6-test panel adding HIV, syphilis, trichomoniasis & hep C
    Sample:
    Finger-prick + swab
    Results:
    Days, online
    • Telehealth visit if positive
    • CLIA-certified labs
    • HSA/FSA eligible
    • Subscription savings

Every kit uses CLIA-certified labs. At-home testing is for screening; a reactive result should be confirmed and treated by a clinician. Prices and panels shown are illustrative and change often, confirm current details on the provider's site.

Also in the area

Other CLIA-certified labs near Seattle, WA

Beyond the public testing sites above, these federally certified (CLIA) labs serve King County, each lab's town is shown on its card below. Many test through a doctor's order or by appointment rather than walk-in, so call ahead to confirm STD/STI testing and availability before visiting.

  • Actx

    2101 4th Ave Suite 1180, Seattle, WA 98121

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Adaptive Biotechnologies

    1165 Eastlake Avenue East, Seattle, WA 98109

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Diagnostic Cytogenetics

    2360 West Commodore Way Suite 201, Seattle, WA 98199

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Dynacare Northwest

    5300 Tallman Avenue Northwest, Seattle, WA 98107

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Dynacare Northwest

    747 Broadway Floor B, Seattle, WA 98122

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Dynacare Northwest

    550 17th Ave Suite 310B, Seattle, WA 98122

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel

Showing 6 of the CLIA-certified labs in King County.

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Seattle. A CLIA certificate records only that a laboratory is federally certified — it does not confirm the site performs STD testing, nor its hours, price or access. Inclusion is not an endorsement; always call to verify.

Local clinicians

Clinicians near Seattle, WA who may help arrange STD testing

Beyond dedicated clinics, 3,198 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Seattle. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 1,356 offer telehealth.

  • Jenny Griffin, MD Telehealth

    Family medicine · 450 Alaskan Way South, Seattle

  • Nupur Garg, DO Telehealth

    Internal medicine · 1145 Broadway, Seattle

  • Elizabeth Thomas, MD

    Internal medicine · 1145 Broadway, Seattle

  • Ellen Schur, MD Telehealth

    Internal medicine · 3800 Montlake Boulevard Northeast, Seattle

  • Alisa Kachikis, MD

    OB-GYN · 1701 Columbia Road, Seattle

  • James Yoder, MD

    Family medicine · 1355 North 205th Street, Shoreline

These are registry-listed clinicians, not dedicated STD-testing clinics. CMS records do not independently verify current licensure, testing services, availability, price, or new-patient status. Confirm each detail before booking. Source: CMS Doctors & Clinicians.

Nearby pharmacies

Pharmacies near Seattle, WA

Compare the pharmacies closest to Seattle, WA. Contact a location directly to confirm pharmacy-counter hours, services, prices, and product availability before visiting.

  • Pat Steel Building Pharmacy

    0.2 mi
    Rx pickupCondoms / EC
  • QFC Pharmacy

    0.2 mi
    Rx pickupCondoms / EC
  • Ahf Pharmacy

    0.5 mi
    Rx pickupCondoms / EC
  • The Bartell Drug 0.6 mi
    Rx pickupCondoms / EC
  • Walgreens 0.7 mi
    Rx pickupOTC HIV self-testAt-home STI kitsPrEP/PEP fillsHPV & Hep B vaccinesCondoms / EC

Showing the 5 closest pharmacies to Seattle, WA.

Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.

Prevention & treatment

PrEP, prevention & online treatment

Testing is one step. For residents of Seattle, telehealth covers the rest: HIV-prevention medication (PrEP) and DoxyPEP to lower future risk, and discreet online treatment if a result comes back positive. All prescribed by licensed U.S. clinicians.

Pricing varies by insurance and changes often, confirm on the provider's site. These services are not a substitute for emergency care.

STD stats & rates

STDs & HIV in King County: the local picture

How reported STI rates in King County, the county that includes Seattle, compare with Washington and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~37% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.

#18 of 39 Washington counties for chlamydia, a higher rate than 54% of the state

Reported STD rates per 100,000, King County vs Washington vs U.S.

King County Washington U.S. = King County vs the state average
Infection King County Washington United States
Chlamydia
324 7,360 cases ▼ 9%
354.4 492.2
Gonorrhea
198.5 4,509 cases ▲ 53%
129.6 179.5
Syphilis (P&S)
25.4 578 cases ▲ 19%
21.3 15.8
Syphilis (early)
18 409 cases ▲ 44%
12.5 16
Syphilis (late/unknown)
29.1 660 cases ▲ 27%
22.9 29.5

Rates per 100,000 population, 2023. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis). Population figures: U.S. Census Bureau ACS. These figures are the latest available surveillance estimates. Bars are scaled to the highest rate shown.

Reading these numbers: reported case rates only count infections that were actually tested for and diagnosed, so they track local screening effort as much as true spread: a higher rate can reflect more testing, a lower one less. Either way, most STIs cause no symptoms, so treat the figures above as context rather than a verdict, and test on the CDC's schedule regardless of how your area looks.

Reported STD rates in King County over time (per 100,000)

Chlamydia ▲ 2% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 200 400 2020202120222023

Between 2020 and 2023 in King County, chlamydia has fallen from 373.4 to 324 per 100,000 (13%), gonorrhea has risen from 192 to 198.5 per 100,000 (3%), and P&S syphilis has risen from 14.8 to 25.4 per 100,000 (72%).

The 2020 dip reflects reduced pandemic-era screening, not lower transmission. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis).

Community health context

What shapes testing access in and around Seattle, WA

Adults uninsured
5.1%
No routine checkup
35.2%
Binge drinking
20.7%
Frequent mental distress
14.3%
Depression
23.8%
Below poverty line
8.5%
Primary-care ratio
839 : 1
King County

Primary-care shortage score 21 / 26

Medically Underserved Area

Social Vulnerability Index · 38th percentile nationally

Sources: CDC PLACES (ZIP), County Health Rankings, CDC/ATSDR SVI, HRSA HPSA, HRSA MUA/P, Neighborhood Atlas ADI. Lower insurance coverage, fewer routine checkups, and a thin primary-care ratio all raise the value of low-cost public clinics and at-home testing in King County.

Local HIV snapshot

HIV in King County (2023)

Federal priority area: King County is one of 48 U.S. counties prioritized under the Ending the HIV Epidemic initiative: targeted federal funding to expand local HIV testing, PrEP, and prevention.

People living with HIV
383 / 100k
New diagnoses (2023)
176cases countywide
On PrEP (coverage)
43.8%

King County HIV care continuum (2023)

King County recorded 9 new HIV diagnoses per 100,000 (2023), against 6.3 statewide and 13.7 nationally. Among King County residents living with HIV, 88% know their status · 87% are in care · 79.1% are virally suppressed. Early, routine testing is what moves these numbers: it is the entry point to PrEP, treatment, and viral suppression.

Sources: AIDSVu (Emory/Gilead) · CDC AHEAD · CDC AtlasPlus · CDC NCHHSTP AtlasPlus (county care continuum). The CDC recommends everyone aged 13–64 test for HIV at least once: every lab and clinic listed above offers HIV testing, and free rapid HIV testing is available at a local health department.

Pregnant or planning to be? Congenital syphilis is the fastest-rising STI: what to test, and when

Congenital syphilis, passed from parent to baby in pregnancy, is the fastest-rising STI in the country. U.S. cases climbed from 2,163 in 2020 to 3,882 in 2023. It is almost entirely preventable: the CDC recommends a syphilis test at the first prenatal visit, and every clinic and lab listed for King County tests for syphilis.

Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).

Editorially Reviewed & Fact-Checked · Updated

Reviewed by EasySTD Editorial Team

Compiled and checked by EasySTD's editorial team against CDC and public-health sources. This is educational information, not a substitute for advice from a licensed clinician. Our editorial guidelines →

17 Sources

Local resources & officials

Data & references

Local context

About Seattle, WA

Stewart Street feeds into the kind of commute that, at rush hour, can stretch a routine errand into a half-day project, and reaching one of the testing options listed here may add a real stretch of city driving to an already full schedule. That time cost lands harder when rent in a city like this already claims a serious share of a paycheck each month, making any appointment that demands multiple hours feel like a genuine trade-off.

The tenure split here shapes daily life in a particular way: more than half of Seattle households rent rather than own, which tends to mean shorter leases, more frequent moves, and the kind of transient-but-busy rhythm that can let health maintenance slide between addresses. Capitol Hill and South Lake Union draw a lot of that younger renter population, people in their late teens and twenties who are forming relationships, changing situations, and statistically account for a disproportionate share of new STI diagnoses. For that crowd, a clinic with flexible hours or a telehealth intake option listed on this page is less a luxury than a practical necessity.

Nearly half of Seattle households clear six figures, yet that average obscures the sizable share that does not, and $1,614 in monthly rent concentrates financial pressure on younger and single-person households. With close to three-quarters of residents in the labor force, Seattle is a city of full calendars. The roughly six in ten unmarried adults here are navigating partnership and relationship changes outside the structures that sometimes prompt routine care, which is exactly the life stage where a low-barrier, low-cost screening option stays relevant.

Getting there

How residents reach STD testing in Seattle, WA

Walkability 17.06 / 20 · Most walkable

Seattle scores 17.06/20 on the EPA walkability index, so many trips are walkable or a short ride, though a car still gives you the widest choice of testing centers.

Source: EPA National Walkability Index 2021.

Map of 12 STD & STI testing locations in Seattle, Washington, EasySTD

Seattle sits in King County. Local context that shapes where residents test:

Local landmarks

  • Ward House
  • Cal Anderson Park
  • The Electric Lady Studio Guitar
  • Volunteer Park
  • Center for Wooden Boats
  • Northwest Seaport

Neighborhoods & communities

  • Capitol Hill
  • Cascade
  • South Lake Union
  • First Hill
  • Central Business District
  • Belltown
  • Westlake
  • West Edge

Major routes

  • Stewart Street
  • Eastlake Avenue
  • Howell Street
  • Denny Way
  • Olive Way

Reference

STD testing in Seattle, WA: screening, costs & privacy

Everything to know before you test in King County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Washington law. If you have symptoms right now, our confidential symptom checker maps them to the tests worth considering.

Who should test, and when CDC screening schedule + each infection's detection window

Who should get tested, and how often

Based on current CDC screening recommendations.

Group Tests How often
Everyone aged 13–64 HIV At least once
Sexually active women under 25 Chlamydia, gonorrhea Every year
Women 25+ with new or multiple partners Chlamydia, gonorrhea Every year
Pregnant people HIV, syphilis, hepatitis B & C, chlamydia Early in pregnancy
Gay & bisexual men (MSM) Chlamydia, gonorrhea, syphilis, HIV Every 3–6 months
Anyone who shares injection equipment HIV, hepatitis B & C At least yearly
All adults at least once Hepatitis C At least once

When to test: STD detection windows

Testing too early can return a false negative, confirm timing with a Seattle-area provider.

Infection Earliest reliable test Sample
Chlamydia 1–2 weeks Urine or swab
Gonorrhea 1–2 weeks Urine or swab
Trichomoniasis 1–4 weeks Urine or swab
HIV (NAT / RNA) 10–33 days Blood
HIV (4th-gen Ag/Ab) 18–45 days Blood
HIV (antibody) 3–12 weeks Blood / oral
Syphilis 3–6 weeks Blood
Hepatitis B 3–6 weeks Blood
Hepatitis C 8–11 weeks Blood
Herpes (HSV) 4–16 weeks (antibody); swab a sore Blood / swab
Browse all STD & STI guides
What each STD test costs Medicare reference prices per lab test, a benchmark before you pay out of pocket

These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Seattle often test free or on a sliding scale; private labs and at-home kits bundle several tests into one fee. Use this as a per-test benchmark before you pay out of pocket, or see the full guide to STD test costs for insurance, free, and at-home options.

Test Reference price CPT / HCPCS
Chlamydia (NAAT) $47.80 87491
Gonorrhea (NAAT) $47.80 87591
Trichomoniasis (NAAT) $47.76 87661
HIV-1/2 antigen/antibody $26.87 87389
HIV-1/2 antibody $22.44 86703
Syphilis (RPR/VDRL) $5.61 86592
Syphilis (treponemal antibody) $17.49 86780
Herpes (HSV NAAT) $47.76 87529
Hepatitis B surface antigen $15.33 87340
Hepatitis C antibody $29.16 86803

Source: Medicare Clinical Laboratory Fee Schedule, CMS, 2025 rates (data.cms.gov). Reference rate for the lab assay only: a clinic visit, sample collection, or a bundled multi-test panel may cost more. Medicaid and most insurers cover STD screening at no out-of-pocket cost.

Confidentiality & consent in Washington Minor consent and partner treatment (EPT) under state law, plus how to test privately

Two things that actually depend on Washington law: who can consent, and whether partners can be treated without their own visit. Everything else about testing privately is the same nationwide (see below).

Can a minor consent on their own?

In Washington, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.

Can my partner be treated too? (EPT)

Washington permits Expedited Partner Therapy (EPT): if you test positive for chlamydia or gonorrhea, your provider can give you medication (or a prescription) to pass to your partner, no separate exam or appointment needed for them.

Keeping a test private works the same in every state. Whether an STD test shows on insurance (the EOB), how to test anonymously, and self-pay options that leave no insurance trail don’t change by location.

Learn more about confidential STD testing in Washington

Source: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.

Good to Know

STD testing FAQs for Seattle, WA

Answers to the questions people ask most before getting tested.

Can I get tested near Mercer Island, WA instead?

Possibly, Mercer Island, WA is close; compare it by distance against ZoomCare.

Does insurance cover STD testing near Seattle, WA?

Most plans cover STD screening; a clinic or lab can bill insurance, or you can pay a flat self-pay price.

Where's free HIV testing around Seattle, WA?

Public clinics nearby offer free HIV testing.

Which tests are offered near Seattle, WA?

Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.

How common is chlamydia in King County?

About 324 cases per 100,000 residents (2023), below the Washington average.

Can someone under 18 get tested in Washington without a parent?

In Washington, people under 18 can consent to confidential STD testing and treatment on their own.

Can I get PrEP near Seattle, WA?

PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.

Is my health information protected when I test?

Medical records are protected under federal HIPAA law, ask the clinic how it handles your information.

What does a positive STD result mean?

It means an infection was found; a provider confirms it and starts treatment, most STIs are curable or manageable.

Should I test again after being treated?

A retest around 3 months after treatment is recommended for chlamydia and gonorrhea.

Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.