In Eureka, California, gonorrhea diagnoses in Humboldt County run about 62% lower than the US average. Whether your first STI test or a routine screening in Eureka, California, you'll find community and public clinics often low-cost or free, while private labs tend to offer faster results and more flexible scheduling. Check the list below for your options.
Available testing centers
11 testing options are listed for Eureka, CA. The nearest, Third Street Services, is about 0.8 miles away. Compare community and public clinics, private labs, and at-home kits below.
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.
Third Street Services, in Eureka, carries federal qualification as a community health center, which means STI screening for syphilis, gonorrhea, and chlamydia runs on a sliding-scale fee tied to income, so cost adjusts to what each patient can actually pay.
Tests offered
Fees & payment
Open Door Community Health Centers in Eureka tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding-scale fee, and all services are provided at no charge. Appointments are required; same-visit treatment is available for bacterial infections.
Open Door's no-fee structure applies across the board: testing, treatment, vaccines, and prevention education each carry a $0 charge regardless of insurance status. Sliding-scale and donation options exist, but the operational floor is free, with no service gated behind ability to pay.
Spanish is a direct service language at Open Door, meaning clinical conversations (history, results, counseling) happen in Spanish without a secondary channel. For the estimated one in four Eureka-area residents who speak Spanish at home, that's the difference between precise communication and approximation.
Open Door's panel runs herpes simplex alongside hepatitis A, B, and C antibody testing. Infections that require separate specimen handling and lab protocols. The TB test expands it further, meaning a single appointment produces results across eight distinct pathogens rather than the four-infection baseline common elsewhere.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN + HRSA
Telehealth & Visiting Specialist Center in Eureka scales its fees to each patient's income, nobody is turned away for inability to pay. That federally qualified standing funds syphilis, gonorrhea, and chlamydia screening, while Ryan White support extends the center's reach into HIV care for those living with the virus.
Tests offered
Fees & payment
A safety-net federally qualified health center about 1 mile from Eureka. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Fees & payment
Open Door RX, serving Eureka under federally qualified health center standing, extends sliding-scale STI screening (syphilis, gonorrhea, and chlamydia) to patients at fees calibrated to household income, so cost is never a fixed barrier to getting tested.
Tests offered
Fees & payment
Planned Parenthood Northern California in Eureka covers herpes, chlamydia, gonorrhea, syphilis, and rapid HIV testing on a sliding-scale fee, with same-visit treatment for bacterial infections: appointments required, and Spanish-language care available on-site.
When a language barrier interrupts STI care at Planned Parenthood Northern the result isn't a delayed conversation, it's a delayed diagnosis or a missed prescription. Spanish speakers and patients needing interpretation receive that support here, in the same appointment where testing, counseling, and treatment happen.
Planned Parenthood Northern California holds Title X designation, which means its family planning services, including STI testing and contraception, are legally confidential for minors. A young person without a regular provider, paying out of pocket, or navigating care without a parent's knowledge has a defined legal framework protecting that visit here.
PrEP, including medications like Truvada, requires ongoing HIV testing and prescription monitoring, all of which Planned Parenthood Northern California carries out in-clinic rather than routing through a separate provider. PEP is also available, meaning both prevention pathways stay within one clinical relationship.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jul 2025 · Source: CDC NPIN
Corporate Services in Eureka earned its federally qualified health center designation by tying fees to income, meaning the cost of STI screening shifts with what you actually earn. Walk-in STI care covers syphilis, gonorrhea, and chlamydia, with no financial barrier standing between patients and testing.
Tests offered
Fees & payment
Free tool · not a clinic
Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each 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.
Typical out-of-pocket ranges by option, actual cost depends on which tests you need.
Public / community clinic
Free HIV testing is common
Private lab (self-pay)
Never billed to insurance
At-home kit
Mailed to your door, private
Doctor / urgent care
Often $0 preventive with insurance
No centers match those filters. Clear the service-type filter or the opening-hours filters to see every center.
Every other option
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
The nearest testing center is less than a mile away; if you'd rather skip the trip, an at-home kit ships to Eureka, 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
Best range: couples & full panels
$79 & up
Best for simplicity & support
$89 & up
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
Beyond the public testing sites above, these federally certified (CLIA) labs serve Humboldt 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.
2700 Dolbeer Street, Eureka, CA 95501
CMS-certified lab Accredited · Joint Commission
1600 Weeot Way, Arcata, CA 95521
CMS-certified lab
529 I Street, Eureka, CA 95501
CMS-certified lab
930 West Harris Street, Eureka, CA 95503
CMS-certified lab
3800 Janes Road, Arcata, CA 95521
CMS-certified lab Accredited · COLA
Showing the nearest 5 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Eureka. 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
Beyond dedicated clinics, 78 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Eureka. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 20 offer telehealth.
Corinne Basch, MD Telehealth
Family medicine · 4641 Valley East Boulevard, Arcata
Elizabeth Micks, MD
OB-GYN · 1150 Foster Avenue, Arcata
Emily Davis, MD
Family medicine · 2200 Tydd Street, Eureka
Simon Stampe, MD
Family medicine · 2350 Buhne Street, Eureka
Alexey Shereshevsky, MD Telehealth
Family medicine · 2280 Harrison Avenue, Eureka
Andrew Turner, DO
Family medicine · 2426 Buhne Street, Eureka
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
No pharmacy near Eureka, CA 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.
0.6 mi Cloney's Red Cross Pharmacy
0.7 miRed Cross Pharmacy
0.7 miRedwood Pharmacies
0.9 miLima's Professional Pharmacy
1.0 mi
1.0 mi Showing the 6 closest pharmacies to Eureka, CA.
Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.
Prevention & treatment
Testing is one step. For residents of Eureka, 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.
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
From $0 insured
Telehealth PrEP & DoxyPEP with at-home testing and ongoing monitoring
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
How reported STI rates in Humboldt County, the county that includes Eureka, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~28% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#29 of 58 California counties for chlamydia, a higher rate than 50% of the state
| Infection | Humboldt County | California | United States |
|---|---|---|---|
| Chlamydia | 332.9 446 cases ▼ 32% | 491.1 | 492.2 |
| Gonorrhea | 68.7 92 cases ▼ 64% | 190.2 | 179.5 |
| Syphilis (P&S) | 16.4 22 cases ▲ 1% | 16.3 | 15.8 |
| Syphilis (early) | 6.7 9 cases ▼ 65% | 19.1 | 16 |
| Syphilis (late/unknown) | 20.9 28 cases ▼ 55% | 46.7 | 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.
Between 2020 and 2023 in Humboldt County, chlamydia has fallen from 395.7 to 332.9 per 100,000 (16%), gonorrhea has fallen from 188.3 to 68.7 per 100,000 (64%), and P&S syphilis has risen from 8.1 to 16.4 per 100,000 (102%).
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
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 Humboldt County.
Local HIV snapshot
Humboldt County HIV care continuum (2023)
Humboldt County recorded 7.7 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Humboldt County residents living with HIV, 87.4% are in care · 82.3% 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.
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 Humboldt County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Along the waterfront where the Carson Mansion rises above Old Town, Eureka moves at its own pace, and getting tested for STIs fits into that pace more easily than many residents assume. With a majority of households renting rather than owning, and typical monthly rent that leaves limited room after fixed costs, fee schedules and sliding-scale options matter here in a way they do in few California cities this size. The city's younger adults, people in their late teens and twenties forming new relationships and navigating an active social scene, represent a meaningful slice of Eureka's population, and they're precisely the group for whom delays in screening translate most directly into untreated infections.
With unemployment running higher than the state norm and labor-force participation below typical urban rates, a lot of residents are working irregular hours, juggling part-time jobs along the Broadway corridor or shift work near the Eureka Mall Region, which means a clinic that's open outside the standard nine-to-five window is not a convenience but a genuine requirement. Fewer than one in six Eureka households clears six figures annually, so free or low-cost appointments carry real weight.
Getting there
Eureka scores 12.43/20 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.
ZIP 95503 snapshot
ZIP-level Census figures for the wider 95503 area around Eureka: a single ZIP can span several communities, so they describe the area, not Eureka alone.
Eureka sits in Humboldt County, ZIP 95503. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Eureka? These nearby communities have their own testing guides: clinics, at-home kits, and free screening close to home.
Reference
Everything to know before you test in Humboldt County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under California law. If you have symptoms right now, our confidential symptom checker maps them to the tests worth considering.
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 |
Testing too early can return a false negative, confirm timing with an Eureka-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 |
These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Eureka 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.
Two things that actually depend on California 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).
In California, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
California 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 CaliforniaSource: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.
Good to Know
Answers to the questions people ask most before getting tested.
Yes, several local labs offer same-day walk-in testing; best to call first.
Usually yes, it can be billed to insurance, or paid out of pocket at a flat rate.
Yes, free HIV testing is available at public clinics in the area.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
Humboldt County reported ~333 chlamydia cases per 100,000 in 2023, below the California average.
Most results are ready in about 1–2 days.
Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.
In California, people under 18 can consent to confidential STD testing and treatment on their own.
Reputable kits use the same lab methods as clinics; any positive should be confirmed and treated by a provider.
Untreated chlamydia can lead to pelvic inflammatory disease and fertility problems, caught early, it's cured with antibiotics.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.