STD Testing in California: Free, Same-Day & Confidential
See how California's reported STI rates track the West and the U.S., then find testing that fits: confidential, low-cost, and free clinics, labs, at-home kits, and up-front costs.
3,553 public & community clinics serve California. Below are 14 testing centers from California's largest cities. Open any city for its full local list.
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.
Listing verified Dec 2025 · Source: CDC NPIN + HRSA
Community health center Santa Ana, CA
Community Medicine , Santa Ana
4.3(138)?
Review sources
EasySTD138
Rated 4.3 out of 5 from 138 reviews
A safety-net clinic in Santa Ana, CA (Federally Qualified Health Center). Sliding-scale STD testing and care are typical at sites like this, call ahead to confirm the exact panel and pricing.
A safety-net clinic in Riverside, CA (Federally Qualified Health Center). Sliding-scale STD testing and care are typical at sites like this, call ahead to confirm the exact panel and pricing.
if you'd rather skip the trip, an at-home kit ships to California, 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 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
Quest Diagnostics
$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
CLIA-certified labs across California
Beyond the public testing sites above, these federally certified (CLIA) labs operate across California, 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.
Adventist Health Tehachapi Valley
1100 Magellan Drive
Certificate of AccreditationAccredited · Joint CommissionCLIA #05D0698784
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records, filtered to active labs certified for moderate-to-high-complexity testing, the level chlamydia/gonorrhea NAAT and syphilis serology require, across California. Any star rating is the CMS Hospital Compare overall rating where the lab is a rated hospital. Inclusion is not an endorsement and doesn't confirm a facility offers STD testing, always call to verify.
Prevention & treatment
PrEP, prevention & online treatment
Testing is one step. For residents of California, 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
Nurx
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or 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 California: the statewide picture
How reported STI rates across California compare with the West region and the United States, using the most recent CDC surveillance data. Data for all 58 counties feeds the county and city pages linked below. About 6.9% of California adults are uninsured, a key reason the free and low-cost testing options below matter.
An estimated ~28% of California residents are aged 15–34 (ACS): the age group with the highest reported chlamydia and gonorrhea rates nationally, which is why testing access across the state matters.
#22
#22 of 51 U.S. states & DC for reported chlamydia
Chlamydia#22of 51
Gonorrhea#18of 51
Syphilis#22of 51
Congenital syphilis#13of 51
HIV#11of 51
Reported STD rates per 100,000, California vs West vs U.S.
CaliforniaWestU.S.▲▼ = California vs the U.S. average
Infection
California
West
United States
Chlamydia
491.1191,357 cases≈ the U.S. average
458.2
492.2
Gonorrhea
190.274,103 cases▲ 6%
164.3
179.5
Syphilis (P&S)
16.36,348 cases▲ 3%
17.9
15.8
Syphilis (early)
19.17,430 cases▲ 19%
16.3
16
Syphilis (late/unknown)
46.718,190 cases▲ 58%
39.6
29.5
Rates per 100,000 population, latest year. Source: CDC NCHHSTP AtlasPlus (all-ages basis). Bars are scaled to the highest rate shown; the badge is each California rate versus the U.S. average.
Reported STD rates in California over time (per 100,000)
Chlamydia ▼1% vs 2022
ChlamydiaGonorrheaSyphilis (P&S)
Between 2020 and 2023 in California, chlamydia has risen from 451.9 to 491.1 per 100,000 (9%), gonorrhea has fallen from 198.4 to 190.2 per 100,000 (4%), and P&S syphilis has fallen from 19.4 to 16.3 per 100,000 (16%).
The 2020 dip reflects reduced pandemic-era screening, not lower transmission. Source: CDC NCHHSTP AtlasPlus.
Community health context
What shapes testing access in California
Adults uninsured
6.9%
Primary-care shortage counties
58 of 58
Public & community clinics
3,553
Pharmacies statewide
9,155
Social Vulnerability Index · California's counties average the 72nd percentile nationally
Lower insurance coverage and a thin clinic-to-population ratio raise the value of free public clinics and confidential at-home testing across California (pop. 38,965,193). Sources: U.S. Census ACS (uninsured), HRSA & CDC NPIN (clinics), NPPES & OpenStreetMap (pharmacies), CDC/ATSDR SVI.
Statewide HIV snapshot
HIV in California (2023)
New diagnoses
14.9 / 100k
People living with HIV
140,985
On PrEP (coverage)
32.2%
Virally suppressed
67.5%
California HIV care continuum (2023)
California reports 14.9 new HIV diagnoses per 100,000, above the U.S. rate of 13.7. The rate has risen19% since 2020. Among California residents living with HIV, 87.4% know their status · 84.3% are linked to care · 75.4% are in care · 67.5% are virally suppressed. On prevention, 32.2% of those who could benefit from PrEP are taking it (above the 31.3% national average). Early, routine testing is what moves these numbers: it is the entry point to PrEP, treatment, and viral suppression.
Source: CDC NCHHSTP AtlasPlus. The CDC recommends everyone aged 13–64 test for HIV at least once, every clinic and lab listed above offers HIV testing.
Also screened
Viral hepatitis in California
Comprehensive panels also screen for hepatitis B and C, both sexually transmissible. Per 100,000, California vs U.S.
Hepatitis A (acute)
0.6U.S. 0.5
Hepatitis B (acute)
0.2U.S. 0.7
Hepatitis C (acute)
0.6U.S. 1.5
Congenital syphilis in California
Pregnant or planning to be?
Congenital syphilis, passed from parent to baby in pregnancy, is the fastest-rising STI in the country. California reported 512 cases in 2023, up from 481 in 2020. Nationally, cases climbed from 2,163 (2020) to 3,882 (2023). It is almost entirely preventable with a syphilis test at the first prenatal visit.
Source: CDC NCHHSTP AtlasPlus, 2023.
How California's STD rates compare
California reported a chlamydia rate of 491.1 per 100,000 in its most recent surveillance year, 0% below the U.S. average of 492.2, and above the West regional rate of 458.2. Gonorrhea ran 190.2 per 100,000, and primary-and-secondary syphilis 16.3.
Among the 50 states and DC, California ranks #22 of 51 for chlamydia. Statewide chlamydia has risen 9% since 2020. The 2020 dip in the trend reflects reduced pandemic-era screening, not lower transmission, and because most STDs are silent, reported counts understate true spread.
Access and cost across California
Testing reaches every corner of California: 3,553 public and community health clinics test free or on a sliding scale, private walk-in labs return results in 1–2 days, and at-home kits ship to every ZIP code, with the densest options around Los Angeles, San Diego, and San Jose.
About 6.9% of California adults are uninsured and 12% live below the poverty line, so cost is the most common reason testing gets delayed. Free public-clinic testing, sliding-scale community health centers, and self-pay private labs that never bill insurance keep screening within reach, weigh them on price, privacy, and turnaround using the comparison above.
Who's most at risk, and how often to test
About 28% of California residents are aged 15–34. The CDC estimates people aged 15–24 account for roughly half of all new STIs nationwide despite being a small share of the population, so screening guidance is age-aware.
Sexually active women under 25, and anyone with new or multiple partners, should test for chlamydia and gonorrhea every year; everyone aged 13–64 should test for HIV at least once; and pregnant residents are screened early in pregnancy. Because most STDs cause no symptoms, testing on the CDC's schedule, not only when something feels wrong, is the reliable way to catch an infection before it spreads.
Prevention, vaccines, and where to get help
Testing is one pillar; prevention is the other. California county and city health departments distribute free condoms, offer HIV counseling, and provide hepatitis A/B and HPV vaccination that heads off several of the infections screened for here, while PrEP and DoxyPEP sharply cut HIV and bacterial-STI risk.
If a result is positive, treatment is close to home: chlamydia, gonorrhea, syphilis, and trichomoniasis are curable with antibiotics, while HIV and herpes are managed with ongoing care. Public health departments treat on site and most private labs include a clinician consult, start with a free or low-cost California clinic above, or an at-home kit for private, mail-in screening.
Reported counts only capture people who got tested, and because most STDs cause no symptoms, real transmission runs higher than any surveillance number suggests, so California's below-average numbers are no reason to skip screening, consistent testing is what keeps them low.
Untreated, these infections do lasting damage: chlamydia and gonorrhea scar the reproductive system and cause infertility; syphilis can lead to stillbirth and organ damage; any active STI raises HIV risk. Caught early, almost all are curable or controllable with a single course of treatment.
Make it routine, not reactive: test as part of your annual check-up if you're sexually active, every three months with new or multiple partners, and before unprotected sex with a new partner. Since 2015 the CDC has urged insurers to cover annual screening for women under 25 at no cost.
Testing protects more than you: a silent infection passes to partners unknowingly. When California residents test on a schedule, the whole state's transmission drops, knowing your status is the single highest-leverage thing you can do.
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 →
California's social vulnerability ranking places it firmly in the upper quarter of all states for community-level risk: meaning that across much of the state, barriers like unstable housing, linguistic isolation, and limited economic mobility actively shape whether people can access sexual health care. That isn't a background detail; it's the reason testing infrastructure matters as much here as infection rates do. The geographic reality compounds that picture in a striking way. Every single one of California's 58 counties has a federally recognized shortage of primary care providers, from the agricultural communities inland to the dense urban corridors of Los Angeles and San Diego.
The sheer number of cities and towns spread across the state means that even in a place with one of the country's most extensive public clinic networks, distance and provider shortages still leave real gaps between where people live and where care is available. California also skews relatively young, with more than a quarter of residents in the age range that public health guidelines identify as highest priority for routine STI screening, and a meaningful share of those young adults are among the uninsured. San Francisco and San Jose have well-developed sexual health infrastructure, but what's accessible in a major metro can look very different from what exists a few hours away. Knowing what options are near you is genuinely the first step.
Free & low-cost testing in all 58 counties · at-home kits ship statewide
Largest metros
Where most California testing demand concentrates, each has its own local guide.
State-level Census (ACS) figures that shape testing demand and access. Median age and income are population-weighted estimates.
Residents
38,965,193
Median age
38
Median income
$101,583
Below poverty
12%
College-educated
36%
Getting there
Major routes serving California
The interstates and highways that connect California's testing sites, most clinics and labs sit on or near one of these corridors.
US 101 (Redwood Highway)
CA 1 (Cabrillo Highway)
I 5 (Cascade Wonderland Highway)
CA 99 (Live Oak Boulevard)
I 80 (Dwight D. Eisenhower Highway)
CA 49 (Main Street)
US 50 (Firefighter Michael "Mikey" Hallenbeck Memorial Highway)
US 395 (Route 395)
Reference
STD testing in California: screening, costs & privacy
Everything to know before you test in California: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under California law.
Who should test, and whenCDC 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 California-area provider.
What each STD test costsMedicare 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 California 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 CaliforniaMinor 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.
Source: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.
Browse by city
STD testing in every California city
Choose your city for the local picture: nearby clinics, lab prices, county STI rates, and at-home kits shipped to your door. We cover all 4,068 California cities and towns; the largest are below.
Answers to the questions California residents ask most before getting tested, from privacy and cost to timing and at-home options.
How does California rank for STDs in the U.S.?
Among the 50 states and DC, California ranks #22 of 51 for chlamydia, reporting about 491 cases per 100,000 (0% below the U.S. average). Reported counts understate the true total because most infections are silent, which is why routine screening matters statewide.
Which STDs are rising in California?
Since 2020, chlamydia is up about 9% in California. Syphilis, including congenital syphilis passed to newborns, is the fastest-growing STI nationally, so prenatal and routine screening are a priority here too.
What is the HIV situation in California today?
California reports about 14.9 new HIV diagnoses per 100,000 residents a year, a rate that has risen in recent years. About 67.5% of residents living with HIV are virally suppressed, undetectable means the virus can't be sexually transmitted (U=U). PrEP and free HIV testing are available across the state.
How common is chlamydia in California versus the U.S.?
California reported about 491 chlamydia cases per 100,000 (2023), 0% below the U.S. average of 492. It is the most commonly reported STD here, and often silent, so under-25s and anyone with new partners should screen yearly.
Is congenital syphilis a concern in California?
Congenital syphilis, when syphilis passes from parent to baby in pregnancy, is the fastest-rising STI crisis in the U.S. (about 3,882 U.S. cases in 2023), and it is almost entirely preventable with a simple blood test early in pregnancy. California recommends syphilis screening at the first prenatal visit, so testing while pregnant, or before, matters here.
Can minors get tested without a parent in California?
In California, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
Will STD testing show up on my insurance in California?
If you use health insurance, an Explanation of Benefits (EOB) may be mailed to the policyholder, which could be a parent or spouse. Under HIPAA (45 CFR 164.522) you can ask your insurer in writing to send communications to you confidentially. California adds its own protection: under the Confidentiality of Medical Information Act (AB 1184), health plans must automatically keep sensitive services, including STI care, off communications to the policyholder, without you having to ask. To leave no insurance trail at all, use a self-pay private lab, an at-home test kit, or a public health clinic, none of these bill your insurance.
Can I get tested anonymously in California?
Anonymous HIV testing is available at some sites in California; elsewhere testing is confidential (name-based) but still protected. Public health clinics and at-home kits also let you test without involving insurance or your regular doctor.
Can my partner be treated without their own visit in California?
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.
Where can I get free or low-cost STD testing across California?
California's 3,553 public and community health clinics, county and city health departments, FQHCs, and Title X family-planning sites, test for free or on a sliding scale statewide, which matters where about 6.9% of adults are uninsured. Pick your city below for the specific clinics nearest you.
How much does STD testing cost in California?
Free or sliding-scale at California's public clinics and FQHCs (Medicaid accepted); at-home kits run about $50–$150 for a full panel; private walk-in labs charge per test. No one is turned away for inability to pay at public health clinics.
How do I get PrEP for HIV prevention in California?
PrEP, a daily pill that prevents HIV, is available across California through health departments, FQHCs, and many primary-care and telehealth providers, often free or low-cost via insurance, Medicaid, or manufacturer assistance programs. Alongside testing and treatment, it's central to the state's HIV response. Any California clinic can start you, or you can begin through a telehealth service.
