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

In Snohomish County, new HIV diagnoses run about 72% lower than the US average. If you're in Oso, Washington and have had a recent risk and simply want to test on a regular schedule, consider how much planning you want to do. Some options accommodate walk-ins for same-day testing, while other let you work around your own schedule.

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

STD testing near Oso, WA

6 testing options are listed for Oso, WA. The nearest, Skagit Regional Health, is about 11.0 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.

Closest to you 11.0 miles

Skagit Regional Health

Where these reviews come from

Review sources

  • Google48
  • EasySTD4
Rated 4 out of 5 from 52 reviews

Skagit Regional Health in Arlington accepts Medicaid, Medicare, and most insurance, with sliding-scale fees for those who pay directly, covering gonorrhea, chlamydia, syphilis, HIV, herpes, hepatitis B, and hepatitis C. Appointments required.

Read full overview Show less

Three Prevention Prescriptions, One Clinical Relationship

Skagit Regional Health prescribes and monitors PrEP, the daily antiretroviral regimen that blocks HIV acquisition, alongside PEP and DoxyPEP, the post-exposure doxycycline protocol that reduces bacterial STI risk after unprotected sex. All three require ongoing labs, refills, and clinical follow-up, handled here by the same prescribing team rather than split across separate offices.

Herpes and Hepatitis Results Don't Leave the Building

Skip a herpes or hepatitis B or C diagnosis and you're left with an incomplete picture: infections that affect treatment decisions, partner notification, and long-term health management. Skagit Regional Health tests for all of them directly, so a positive herpes or hepatitis result connects immediately to treatment planning rather than sending you back into the scheduling queue elsewhere.

Tests & treats Sliding-scale PrEP DoxyPEP
Address
903 Medical Center Drive, Arlington, WA 98223
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
Community health center 11.1 miles

Community Health Center of Snohomish County

Where these reviews come from

Review sources

  • Google1,015
  • EasySTD5
Rated 4.6 out of 5 from 1020 reviews

Community Health Center of Snohomish County in Arlington runs by appointment, and a single scheduled visit covers the full bacterial and viral panel, sliding-scale fees, same-visit treatment for bacterial STIs, and prevention tools including PrEP and DoxyPEP.

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DoxyPEP Prescribed Alongside PrEP and PEP

Community Health Center of Snohomish County prescribes all three current biomedical prevention options: daily oral PrEP, post-exposure PEP, and DoxyPEP, the antibiotic taken after potential bacterial exposure. Having all three under one prescribing relationship means prevention strategy can be calibrated as circumstances change, without switching providers.

Hepatitis C Diagnosed and Treated Here

For anyone without a specialist or a regular primary-care relationship, Community Health Center of Snohomish County's standing capacity to treat hepatitis C on-site, not merely detect it, closes the gap between a positive antibody result and actual antiviral therapy in a single clinical home.

Hepatitis Testing Added to the Standard Four

The conventional four-infection screen leaves hepatitis C off the table entirely. Community Health Center of Snohomish County tests for hepatitis C alongside gonorrhea, chlamydia, syphilis, and HIV, so one appointment captures a more complete picture of bloodborne and sexually transmitted risk.

Tests & treats Sliding-scale PrEP DoxyPEP
Address
326 South Stillaguamish Avenue, Arlington, WA 98223
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 7:00 PM
  • Tuesday 8:00 AM – 7:00 PM
  • Wednesday 8:00 AM – 7:00 PM
  • Thursday 9:00 AM – 6:00 PM
  • Friday 8:00 AM – 5:30 PM
  • Saturday 8:00 AM – 5:30 PM
  • Sunday Closed
Website

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.

Detection windows for every STI
Infection Earliest reliable test Conclusive after
Chlamydia 7 days after exposure 14 days after exposure
Gonorrhea 7 days after exposure 14 days after exposure
Trichomoniasis 7 days after exposure 28 days after exposure
HIV (NAT / RNA) 10 days after exposure 33 days after exposure
HIV (4th-gen Ag/Ab) 18 days after exposure 45 days after exposure
HIV (antibody) 21 days after exposure 84 days after exposure
Syphilis 21 days after exposure 42 days after exposure
Hepatitis B 21 days after exposure 42 days after exposure
Hepatitis C 56 days after exposure 77 days after exposure
Herpes (HSV) 28 days after exposure 112 days after exposure

Guidance only, confirm timing with a clinician. A negative result before the conclusive date may need a repeat test.

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

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Rate what mattered to you, no account needed. Reviews are moderated before publishing.

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Every other option

More ways to get tested in Oso, 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.

At-home STD testing in Oso, WA

The nearest testing center is about 11 miles away; if you'd rather skip the trip, an at-home kit ships to Oso, 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.

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.

Other CLIA-certified labs near Oso, WA

Beyond the public testing sites above, these federally certified (CLIA) labs serve Snohomish 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.

  • Skagit Regional Health - Smokey Point

    3823 172nd Street Northeast, Arlington, WA 98223

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Silver Falls Dermatology

    16410 Smokey Point Blvd Suite 300, Arlington, WA 98223

    CMS-certified lab

    • STD testing
  • Optum Care Washington

    4011 172nd Street Northeast, Arlington, WA 98223

    CMS-certified lab

    • STD testing
  • Cascade Valley Hospital - Frozen Section

    330 South Stillaguamish Avenue, Arlington, WA 98223

    CMS-certified lab

    • STD testing
  • Cascade Valley Hospital

    330 South Stillaguamish Avenue, Arlington, WA 98223

    CMS-certified lab

    • STD testing

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Oso. 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.

Clinicians near Oso, WA who may help arrange STD testing

Beyond dedicated clinics, 472 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Oso. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 133 offer telehealth.

  • Stephanie Salas, MD

    Internal medicine · 330 South Stillaguamish Avenue, Arlington

  • Karen Myren, MD Telehealth

    Family medicine · 875 Wesley Street, Arlington

  • Jacklyn Lee, DO Telehealth

    Family medicine · 7530 204th Street Northeast, Arlington

  • Grace Bay, DO

    OB-GYN · 903 Medical Ctr Drive, Arlington

  • Phillip Burk, MD

    Family medicine · 405 West Stanley Street, Granite Falls

  • Devon Kienzle, DO

    Family medicine · 1190 Riddle Street, Darrington

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.

Pharmacies near Oso, WA

No pharmacy near Oso, 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.

Showing the 6 closest pharmacies to Oso, WA.

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

PrEP, prevention & online treatment

Testing is one step. For residents of Oso, 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.

STDs & HIV in Snohomish County: the local picture

How reported STI rates in Snohomish County, the county that includes Oso, compare with Washington and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~35% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.

#24 of 39 Washington counties for chlamydia, a higher rate than 38% of the state

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

Snohomish County Washington U.S. ▲▼ = Snohomish County vs the state average
Infection Snohomish County Washington United States
Chlamydia
252.7 2,135 cases ▼ 29%
354.4 492.2
Gonorrhea
74.7 631 cases ▼ 42%
129.6 179.5
Syphilis (P&S)
8 68 cases ▼ 62%
21.3 15.8
Syphilis (early)
8.2 69 cases ▼ 34%
12.5 16
Syphilis (late/unknown)
10.7 90 cases ▼ 53%
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 Snohomish County over time (per 100,000)

Chlamydia ▼ 2% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 175 350 2020202120222023

Between 2020 and 2023 in Snohomish County, chlamydia has fallen from 321.6 to 252.7 per 100,000 (21%), gonorrhea has fallen from 98 to 74.7 per 100,000 (24%), and P&S syphilis has risen from 7.5 to 8 per 100,000 (7%).

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 Oso, WA

Adults uninsured
8%
No routine checkup
28%
Binge drinking
16.6%
Frequent mental distress
17.8%
Depression
28.2%
Below poverty line
8%
Primary-care ratio
1,873 : 1
Snohomish County
  • Primary-care shortage score 20 / 26
  • Medically Underserved Area · IMU 58.9
  • Social Vulnerability Index · 36th 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 Snohomish County.

Local HIV snapshot

HIV in Snohomish County (2023)

People living with HIV
186 / 100k
New diagnoses (2023)
27cases countywide
On PrEP (coverage)
10.3%

Snohomish County HIV care continuum (2023)

Snohomish County recorded 3.8 new HIV diagnoses per 100,000 (2023), against 6.3 statewide and 13.7 nationally. Among Snohomish County residents living with HIV, 85.2% are in care · 77.9% 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 Snohomish County tests for syphilis.

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

17 Sources

Local resources & officials

Data & references

About Oso, WA

Passing Wheeler Mountain, you notice the tight-knit feel of Oso's neighborhoods, where nearly every house is a long-term home. With married couples making up a significant share of households, and families often having multiple generations living together, health decisions are frequently made with consideration for the whole family.

The local workforce is engaged, with many residents balancing work and family life. Given the high level of household earnings and stable employment, residents have the means to prioritize their health. However, with large families and busy schedules, finding time for health screenings can be challenging. For young adults still forming relationships and establishing their careers, having convenient access to testing can make a big difference in staying on top of their health.

Near the Oso Slide Memorial, community life unfolds in a setting that values stability and familiarity. As residents navigate their daily routines, staying current with health screenings is essential, particularly in a community where the younger adult population is significant. With many households having a strong financial foundation, and a culture that prioritizes family, it's clear that health decisions are made with careful consideration for what's best for each family member.

Getting there

How residents reach STD testing in Oso, WA

Walkability 6.41 / 20 · Below average

At 6.41/20 on the EPA walkability index, day-to-day errands in Oso generally mean driving: plan on a car or rideshare to reach a clinic, and check each listing's hours and phone before you go.

Source: EPA National Walkability Index 2021.

Map of 6 STD & STI testing locations in Oso, Washington, EasySTD

ZIP 98223 snapshot

Residents
46,225
Median age
40.5
Median income
$96,478

ZIP-level Census figures for the wider 98223 area around Oso: a single ZIP can span several communities, so they describe the area, not Oso alone.

Oso sits in Snohomish County, ZIP 98223. Local context that shapes where residents test:

Local landmarks

  • Oso Slide Memorial
  • Wheeler Mountain

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

Everything to know before you test in Snohomish 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.

GroupTestsHow 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 an Oso-area provider.

InfectionEarliest reliable testSample
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

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 Oso 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.

TestReference priceCPT / 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.

STD testing FAQs for Oso, WA

Answers to the questions people ask most before getting tested.

Is walk-in STD testing available near Oso, WA?

Yes, several local labs offer same-day walk-in testing; best to call first.

How much does STD testing cost near Oso, WA?

Free at public clinics. Private labs run about $24 for one test and $139 for a full panel; at-home kits are $49+.

Is there free HIV testing near Oso, WA?

Yes, free HIV testing is available at public clinics in the area.

What's included in a full panel near Oso, WA?

A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.

How common is chlamydia in Snohomish County?

Snohomish County reported ~253 chlamydia cases per 100,000 in 2023, below the Washington average.

Is there an at-home STD test for Oso, WA?

At-home kits mail to 98223: self-collect, send to the lab, results in ~2–5 days.

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 Oso, WA?

Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.

What should I do after sexual assault?

Go to an ER or call RAINN (800-656-4673); they provide testing, PEP, and support right away.

How soon after sex should I get tested?

Chlamydia and gonorrhea show up about 1–2 weeks after exposure, syphilis 3–6 weeks, and HIV 2–6 weeks depending on the test.

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