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.
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.
Location unavailable — enter a ZIP code or city instead.
Premium Partner
Quest Diagnostics
Most popular Results in 1–2 days
3.4(127)?Where these reviews come from
Review sources
Google122
EasySTD5
Rated 3.4 out of 5 from 127 reviews
Address
1101 Madison Street, Seattle, WA 98104 0.8 miles away
Today's offer: $10 off any test panel, applied automatically at checkout.
Most reviewed 0.3 miles
ZoomCare
4.4(863)?Where these reviews come from
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.
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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.
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.
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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.
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.
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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.
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.
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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.
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.
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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 & treatsRyan White HIV careSliding-scalePrEP
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.
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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.
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.
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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 & treatsPrEPDoxyPEP
Address
1100 9th Avenue, Central Pavilion Level 7 Seattle, WA 98101
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.
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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.
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.
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 (opens in a new tab) 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
$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
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 labAccredited · College of American Pathologists
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.
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
No pharmacy near Seattle, WA publishes an STD-related service or holds a current CLIA testing certificate, so these are simply the closest. Contact a location directly to confirm counter hours, services, prices, and availability before visiting.
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.
Online treatment
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions to your pharmacy
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
#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 CountyWashingtonU.S.▲▼ = King County vs the state average
Infection
King County
Washington
United States
Chlamydia
3247,360 cases▼ 9%
354.4
492.2
Gonorrhea
198.54,509 cases▲ 53%
129.6
179.5
Syphilis (P&S)
25.4578 cases▲ 19%
21.3
15.8
Syphilis (early)
18409 cases▲ 44%
12.5
16
Syphilis (late/unknown)
29.1660 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)
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).
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 → (opens in a new tab)
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
Walkability17.06 / 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.
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
Nearby cities & towns
Nearby cities and towns near Seattle, WA
Just outside Seattle? These nearby communities have their own testing guides: clinics, at-home kits, and free screening close to home.
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.
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.