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STD Testing in Guinda, CA: Free, Same-Day & Confidential

Syphilis in Yolo County reported 28% below the national average. Before starting a new relationship or as part of ongoing care, residents considering STI testing in Guinda, California have choices. Clinics may bill insurance or offer sliding-scale fees, while many private labs let you pay a flat self-pay price. Find options below.

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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 Guinda, CA

6 testing options are listed for Guinda, CA. The nearest, Winters Healthcare, is about 13.6 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.

Highest rated 13.6 miles

Winters Healthcare

Where these reviews come from

Review sources

  • Google5
  • EasySTD1
Rated 5 out of 5 from 6 reviews

Winters Healthcare in Esparto runs by appointment and covers chlamydia, gonorrhea, syphilis, HIV, and herpes testing alongside STI treatment and PrEP (on a sliding-scale fee accepted by Medicaid, Medicare, and private insurance) with care delivered in Spanish.

Read full overview Show less

Herpes Testing Alongside the Standard Four

Winters Healthcare tests for herpes simplex in addition to chlamydia, gonorrhea, syphilis, and HIV. A fifth infection on the panel that most appointment-based clinics leave off. That single addition changes what a visit can rule out or confirm without a separate referral.

PEP Is Prescribed Here, Not Tracked Down Elsewhere

Plenty of testing-only practices hand patients PrEP brochures but lack the prescribing infrastructure to actually dispense either PrEP or PEP on-site. Winters Healthcare carries both prevention medications as active clinical services, meaning the prescribing relationship lives here rather than somewhere a patient has to locate independently.

Spanish-Language Care, Operationally Embedded

Spanish functions as a full clinical language at Winters Healthcare: counseling, HIV test results, and PrEP management discussions all happen directly in Spanish. For patients whose medical reasoning happens in Spanish, that difference is baked into every appointment rather than patched in after the fact.

Tests & treats Sliding-scale PrEP
Address
17340 Yolo Avenue, Esparto, CA 95627
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 7:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 7:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Community health center 14.9 miles

Colusa Medical Center

No ratings yet

A public safety-net rural health clinic about 15 miles from Guinda. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.

Address
900 King Street, Arbuckle, CA 95912
Website
Premium Partner

Labcorp

Results in 1–2 days
Where these reviews come from

Review sources

  • Google13
  • EasySTD2
Rated 2.9 out of 5 from 15 reviews
Address
999 Adams Street, Saint Helena, CA 94574 26.5 miles away
Opening hours
  • Monday 7:00 AM – 3:00 PM
  • Tuesday 7:00 AM – 3:00 PM
  • Wednesday 7:00 AM – 3:00 PM
  • Thursday 7:00 AM – 3:00 PM
  • Friday 7:00 AM – 3:00 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

Quest Diagnostics

Results in 1–2 days
Where these reviews come from

Review sources

  • Google22
  • EasySTD3
Rated 2.8 out of 5 from 25 reviews
Address
1837 East Gibson Road, Woodland, CA 95776 27.1 miles away
Opening hours
  • Monday 7:00 AM – 5:00 PM
  • Tuesday 7:00 AM – 5:00 PM
  • Wednesday 7:00 AM – 5:00 PM
  • Thursday 7:00 AM – 5:00 PM
  • Friday 7:00 AM – 5:00 PM
  • Saturday 7:00 AM – 12:00 PM
  • 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

Results in 1–2 days
Where these reviews come from

Review sources

  • Google31
  • EasySTD4
Rated 3.4 out of 5 from 35 reviews
Address
1025 Bridge Street, Colusa, CA 95932 28.1 miles away
Opening hours
  • Monday 7:00 AM – 3:30 PM
  • Tuesday 7:00 AM – 3:30 PM
  • Wednesday 7:00 AM – 3:30 PM
  • Thursday 7:00 AM – 3:30 PM
  • Friday 7:00 AM – 3:30 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

Most reviewed Results in 1–2 days
Where these reviews come from

Review sources

  • Google52
  • EasySTD5
Rated 3.4 out of 5 from 57 reviews
Address
1411 West Covell Boulevard, Davis, CA 95616 29.6 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.

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.

Privacy & discretion
Wait time
Staff & comfort
Value for cost

Every other option

More ways to get tested in Guinda, CA

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 Guinda, CA

The nearest testing center is about 14 miles away; if you'd rather skip the trip, an at-home kit ships to Guinda, 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.

Also in the area

Other CLIA-certified labs near Guinda, CA

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

  • Life Technologies Clinical Services LAB

    910 Riverside Pkwy Suite 60, West Sacramento, CA 95605

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
    Call Directions

  • Sutter Davis Hospital

    2000 Sutter Place, Davis, CA 95616

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
    Call Directions

  • Woodland Memorial Hospital Laboratory

    1325 Cottonwood Street, Woodland, CA 95695

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
    Call Directions

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Guinda. 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 Guinda, CA who may help arrange STD testing

Beyond dedicated clinics, 121 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Guinda. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 71 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 Guinda, CA

No pharmacy near Guinda, 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.

Showing the 5 closest pharmacies to Guinda, CA.

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 Guinda, 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 Yolo County: the local picture

How reported STI rates in Yolo County, the county that includes Guinda, compare with California and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~32% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.

#20 of 58 California counties for chlamydia, a higher rate than 66% of the state

Reported STD rates per 100,000, Yolo County vs California vs U.S.

Yolo County California U.S. ▲▼ = Yolo County vs the state average
Infection Yolo County California United States
Chlamydia
416.7 919 cases ▼ 15%
491.1 492.2
Gonorrhea
101.6 224 cases ▼ 47%
190.2 179.5
Syphilis (P&S)
11.3 25 cases ▼ 31%
16.3 15.8
Syphilis (early)
5.4 12 cases ▼ 72%
19.1 16
Syphilis (late/unknown)
31.3 69 cases ▼ 33%
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.

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

Chlamydia ▼ 8% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 250 500 2020202120222023

Between 2020 and 2023 in Yolo County, chlamydia has risen from 409.4 to 416.7 per 100,000 (2%), gonorrhea has fallen from 142.8 to 101.6 per 100,000 (29%), and P&S syphilis has fallen from 15.2 to 11.3 per 100,000 (26%).

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 Guinda, CA

Adults uninsured
8.9%
No routine checkup
23.1%
No transportation
8.2%
Binge drinking
14.2%
Frequent mental distress
16.6%
Depression
24%
Below poverty line
34.5%
Primary-care ratio
810 : 1
Yolo County
  • Primary-care shortage score 18 / 26
  • Medically Underserved Area · IMU 53.2
  • Social Vulnerability Index · 74th 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 Yolo County.

Local HIV snapshot

HIV in Yolo County (2023)

People living with HIV
196 / 100k
New diagnoses (2023)
22cases countywide
On PrEP (coverage)
7.8%

Yolo County HIV care continuum (2023)

Yolo County recorded 11.5 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Yolo County residents living with HIV, 79.4% are in care · 71.3% 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.

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 Yolo County tests for syphilis.

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

Reviewed & Fact-Checked · Updated

Reviewed by EasySTD Editorial Team (opens in a new tab)

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)

17 Sources

Local resources & officials

Data & references

Local context

About Guinda, CA

Guinda sits in Yolo County, California: a small, rural community, where it's more working-class than college-credentialed (about 16.6% hold a degree). With clinics few and far between, an at-home kit or a telehealth visit is often the simplest way to get screened.

Getting there

How residents reach STD testing in Guinda, CA

Walkability 9.11 / 20 · Below average

At 9.11/20 on the EPA walkability index, day-to-day errands in Guinda 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 Guinda, California, EasySTD

ZIP 95637 snapshot

Residents
374
Median age
64.5
Median income
$134,663

ZIP-level Census figures for the wider 95637 area around Guinda: a single ZIP can span several communities, so they describe the area, not Guinda alone.

Guinda sits in Yolo County, ZIP 95637. Local context that shapes where residents test:

Local landmarks

  • Indian School
  • China Peak
  • Black Mountain

Reference

STD testing in Guinda, CA: screening, costs & privacy

Everything to know before you test in Yolo 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.

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 a Guinda-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
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 Guinda 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 California

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

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).

Can a minor consent on their own?

In California, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.

Can my partner be treated too? (EPT)

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 California

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 Guinda, CA

Answers to the questions people ask most before getting tested.

Where can I get tested for STDs in Guinda, CA?

The closest is Winters Healthcare (13.6 mi); 6 options are within 30 miles.

Does insurance cover STD testing near Guinda, CA?

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

Is there free HIV testing near Guinda, CA?

Public clinics nearby offer free HIV testing.

Which tests are offered near Guinda, CA?

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 Yolo County?

About 417 cases per 100,000 residents (2023), below the California average.

Can I get PrEP near Guinda, CA?

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

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

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

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.

Is my health information protected when I test?

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

Is new discharge a reason to test?

Definitely worth testing; abnormal discharge often points to a treatable STI.

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