In Colusa County, the rate of reported syphilis is 15% higher than the US average. If it's time for an STI test in Colusa County, California whether it's your first or a routine screening, choose how you want to manage your time. Some clinics accept walk-ins for same-day testing, while labs and at-home kits offer more flexibility.
Available testing centers
9 testing options are listed for Colusa, CA. The nearest, Ampla Health, is about 0.1 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.
Ampla Health in Colusa is a community health center where STI care (gonorrhea, chlamydia, syphilis, HIV, herpes, hepatitis B and C, and TB) runs on a sliding-scale fee open to all, with appointments required and bacterial infections treated the same visit, in English and Spanish.
Ampla Health in Colusa maintains Spanish-speaking staff and interpretation services for other languages: meaning clinical conversations about symptoms, test results, and treatment plans happen in real time with the provider, without a relay. Counseling and follow-up carry the same language continuity.
Beyond gonorrhea, chlamydia, syphilis, and HIV, Ampla Health tests for herpes and both hepatitis B and C, which means a single appointment in Colusa can surface infections that a narrower panel would leave undetected, shaping a more complete picture before any treatment decisions are made.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Oct 2025 · Source: CDC NPIN + HRSA
A community safety-net rural health clinic in Colusa. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
A public safety-net rural health clinic in Colusa. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Colusa Indian Community Council in Colusa tests for gonorrhea, chlamydia, syphilis, and HIV, and treats bacterial STIs at the same visit. Fees run on a sliding scale, with Medicaid, Medicare, and private insurance all accepted. An appointment is required.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN
Peachtree Health in Live Oak runs by appointment and covers the full bacterial and viral panel (gonorrhea, chlamydia, syphilis, herpes, hepatitis A, B, and C, TB, and rapid or conventional HIV) with same-visit treatment for bacterial infections and sliding-scale fees that apply to everyone. All services are provided at no fee.
Every test, treatment, vaccine, and prevention service at Peachtree Health carries a zero-dollar price tag. That means the cost of PrEP, hepatitis C treatment, or an mpox vaccine never becomes the reason someone delays care or skips a follow-up.
Peachtree Health staffs fluent American Sign Language communication and Spanish-language services directly, so clinical conversations (exposure history, medication instructions, follow-up planning) happen without a relay. For other languages, interpretation services are arranged for the appointment itself.
Peachtree Health maintains the clinical capacity to prescribe, initiate, and monitor both PrEP and PEP: meaning someone without a regular primary-care provider, or paying entirely out of pocket, can get HIV prevention medication managed from a single location rather than piecing together care across multiple offices.
Languages
American Sign Language, English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Apr 2026 · Source: CDC NPIN
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 Colusa, 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 for simplicity & support
$89 & up
Best value: single tests
$49 & 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 Colusa 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.
199 East Webster Street, Colusa, CA 95932
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Colusa. 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, 115 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Colusa. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 35 offer telehealth.
Harpreet Johl, MD
Family medicine · 3710 Hwy 45, Colusa
Jose Molina, MD
Family medicine · 555 Fremont Street, Colusa
Jeetinder Sohal, MD
OB-GYN · 173 East Webster Street, Colusa
Benson Chin, MD Telehealth
Family medicine · 9980 Live Oak Boulevard, Live Oak
Russell Heckburn, MD
Family medicine · 1275 Tharp Road, Yuba City
Lakshmi Kodey, MD Telehealth
Family medicine · 900 Tharp Road, Yuba City
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 Colusa, 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.
0.5 mi Davison Drug & Stationery
0.6 miFouch & Son Pharmacy
8.1 miLive Oak Pharmacy
19 mi
20 mi 
20 mi Showing the 6 closest pharmacies to Colusa, 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 Colusa, 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.
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions to your pharmacy
$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
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 Colusa County, the county that includes Colusa, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~23% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#44 of 58 California counties for chlamydia, a higher rate than 24% of the state
| Infection | Colusa County | California | United States |
|---|---|---|---|
| Chlamydia | 249.6 55 cases ▼ 49% | 491.1 | 492.2 |
| Gonorrhea | 49.9 11 cases ▼ 74% | 190.2 | 179.5 |
| Syphilis (P&S) | 18.2 4 cases ▲ 12% | 16.3 | 15.8 |
| Syphilis (early) | 9.1 2 cases ▼ 52% | 19.1 | 16 |
| Syphilis (late/unknown) | 18.2 4 cases ▼ 61% | 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 Colusa County, chlamydia has risen from 238.1 to 249.6 per 100,000 (5%), gonorrhea has fallen from 114.5 to 49.9 per 100,000 (56%), and P&S syphilis has risen from 9.2 to 18.2 per 100,000 (98%).
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 Colusa County.
Local HIV snapshot
Colusa County HIV care continuum (2023)
Among Colusa County residents living with HIV, 85% are in care · 45% 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 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 Colusa County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Along Bridge Street, where rent at $839 a month doesn't leave much margin, and in a town where nearly half of households are renters, a clinic visit that costs even a modest co-pay can feel like a line item worth skipping. That calculus is especially real for younger adults here, the late-teen and twentysomething crowd who are most likely to need routine STI screening and least likely to have a financial cushion when competing costs pile up. Colusa's listed testing options include low- and no-cost choices precisely because that budget pressure is the most common reason a visit gets postponed indefinitely. Getting there is its own consideration.
Average household size here runs above three people, and with nearly two in five adults not currently in the labor force, schedules are varied but transportation isn't always guaranteed. The good news is that the clinic cards on this page show hours, fees, and distance together, so it's possible to find something that fits a single weekday gap or a Saturday errand run along Market Street. The kind of slot that actually gets used. Colusa's scale means fewer options than a larger city, but the ones listed are real and reachable.
Getting there
At 8.23/20 on the EPA walkability index, day-to-day errands in Colusa 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.
ZIP 95932 snapshot
ZIP-level Census figures for the wider 95932 area around Colusa: a single ZIP can span several communities, so they describe the area, not Colusa alone.
Colusa sits in Colusa County, ZIP 95932. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Colusa? 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 Colusa 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 a Colusa-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 Colusa 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.
There are 7 options within a 30-mile drive.
Free at public clinics. Private labs run about $24 for one test and $139 for a full panel; at-home kits are $49+.
Public clinics serve people without insurance, often on a sliding scale.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
Colusa County reported ~250 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.
Your results are part of your HIPAA-protected medical record; you can ask any clinic about its own privacy practices.
It's a common STI symptom; test for chlamydia and gonorrhea and have a provider check you.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.