STD Testing in Costa Mesa, CA
13 places to get tested — 3 partner labs that need no appointment, and 10 clinics and testing sites near Costa Mesa.
- 3partner labs
- 4free clinics
- 6sliding scale
Order a test online
Pick a panel, visit a lab nearby, results in 1–2 days. No appointment, no insurance.
GET TESTED NOWCompare pricing →4,500+ labs nationwide · from $24Partner labs near Costa Mesa
Order online, then walk in the same day with no appointment. A urine or blood sample takes about 15 minutes, and results come back in 1–2 days. They are confidential: never reported to your insurance company or added to your medical record.
Quest Diagnostics
1.1 mi awayNo appointment$10 off orders over $100 applied at checkoutOrder a test for this lab →Quest Diagnostics
2.2 mi awayNo appointment$10 off orders over $100 applied at checkoutOrder a test for this lab →Labcorp
2.2 mi awayNo appointment$10 off orders over $100 applied at checkoutOrder a test for this lab →
We earn a commission if you order through the links above. It does not change what you pay, and it does not decide which labs are listed — those are the closest partner labs to Costa Mesa.
Explore testing locations in and near Costa Mesa
Clinics and testing sites near Costa Mesa
No free or low-cost clinic is addressed in Costa Mesa itself, so the nearest are listed below, closest first. Public clinics generally take longer to return results than a private lab, and several test on set days only, so it is worth calling ahead. If you would rather not wait or give your details at a public clinic, the 3 partner labs in Costa Mesa need no appointment and return results in 1–2 days.
How we chose these 10 clinics
- Every one is on the CDC’s GetTested locatorThe wider CDC directory we draw from has over 16,000 entries. Only the ones GetTested also lists can appear here, and all 10 clinics below do.
- Listings that name fewer than three tests are left outEven on GetTested, 527 listings name fewer than three tests. We don’t show them anywhere.
- Unverified pregnancy centers are never shownThe CDC lists some pregnancy centers whose STD testing we couldn’t verify. We don’t list them anywhere.
- Cost is stated the way the CDC lists itFree, sliding scale or insurance accepted, as each clinic reports it to the CDC. We don’t estimate prices, and if the listing says nothing, the card says “Fees not listed.”
Directory retrieved September 4, 2026. Open “View services” on any card to see when that clinic last updated its listing. All sources
- Clinic3.5 mi away
Radiant Health Centers
17982 Sky Park Cir, Irvine, CA, 92614
HoursMon-Tue 8:00am-5:00pm+2
Wed-Thu 9:00am-6:00pm · Sat 8:00am-5:00pmAppointmentsAppointment requiredFeesFree STI testing listed- HIV & STI testing
- PrEP & PEP
- Treats STIs
- Medicaid accepted
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B · Hepatitis C · Hepatitis A · Self-test kit
Treatments STI treatment · PrEP · PEP · HIV care · Hep C treatment · Family planning · Ryan White · Mpox vaccine · Free condoms · PrEP navigation · Case management
Languages English · Spanish · interpreter available
CDC GetTested listing, last updated by the source July 13, 2026. Directory retrieved September 4, 2026.
- Community health center3.6 mi away
Families Together of Orange County
Fountain Valley Clinic
11180 Warner Ave, Fountain Valley, CA, 92708
HoursMon-Fri 9:00am-6:00pm
AppointmentsAppointment requiredFeesFree HIV testing listed- HIV & STI testing
- PrEP & PEP
- Treats STIs
- Medicaid accepted
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B · Hepatitis C · Hepatitis A · TB
Treatments STI treatment · PrEP · PEP · HIV care · Hep C treatment · Family planning · HPV vaccine · Hep B vaccine · Free condoms · PrEP navigation · Case management
Languages English · Spanish · other languages · interpreter available
CDC GetTested listing, last updated by the source November 7, 2025. Directory retrieved September 4, 2026.
- Public health department6.6 mi away
Orange County Health Care Agency
17th Street Testing and Treatment
1725 W 17th St, Santa Ana, CA, 92706
HoursMon 8:00am-4:00pm+2
Tue 10:00am-4:00pm · Wed-Fri 8:00am-4:00pmAppointmentsWalk-ins acceptedFeesFree STI testing listed- HIV & STI testing
- PrEP & PEP
- Treats STIs
- Spanish spoken
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Hepatitis B · Hepatitis C · Hepatitis A
Treatments STI treatment · PrEP · PEP · HIV care · Family planning · HPV vaccine · Hep B vaccine · Mpox vaccine · Free condoms · Harm reduction · PrEP navigation
Languages English · Spanish
CDC GetTested listing, last updated by the source April 19, 2026. Directory retrieved September 4, 2026.
- Community organization7.0 mi away
LGBT Center of Orange County
1605 N Spurgeon St, Santa Ana, CA, 92701
HoursMon-Fri 10:00am-6:00pm
AppointmentsWalk-ins acceptedFeesFree STI testing listed- HIV & STI testing
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV
Treatments Free condoms
Languages English
CDC GetTested listing, last updated by the source April 29, 2026. Directory retrieved September 4, 2026.
Testing privacy
Anonymous vs. confidential testing
Most clinics test confidentially. Some also offer anonymous testing, usually for HIV. Availability varies by testing site, so ask when you call.
Confidential
- You give your name, and the result goes in your medical record.
- Results are not available to the public.
- Chlamydia, gonorrhea, syphilis and HIV are reportable in every state, so a positive result is reported to the health department. Those reports are kept confidential.
Anonymous
- You don’t give your name.
- You receive a number and use it, not your name, to get your result.
- Not every site offers it. Ask before your visit.
Source: NIH HIVinfo, HIV Testing · CDC, STI Reporting and Confidentiality
Buy an at-home STD test near Costa Mesa and online
CVS Pharmacy, Target, Walgreens and Walmart sell over-the-counter test kits near Costa Mesa, and myLAB Box ships one to your door. You collect the sample at home and mail it to a lab. Stock varies by branch — call ahead or check online before making the trip.
CVS Pharmacy
Nearest branch · 0.7 mi17 storesTarget
Nearest branch · 1.2 mi6 storesWalgreens
Nearest branch · 2.1 mi5 storesWalmart
Nearest branch · 4.4 mi4 storesmyLAB Box
Online · ships nationwideMail-in kit
We earn a commission if you order a myLAB Box kit through the link above. It does not change what you pay, and it does not decide which pharmacies are listed — those are the chains with branches near Costa Mesa.
Orange County STD rates
Reported cases per 100,000 residents. Change shown against the year before.
Chlamydia
▲ 2.3%369.3per 100k
11,579 reported cases · 2023 · 25% below the CA rate
Gonorrhea
▼ 0.1%127.7per 100k
4,005 reported cases · 2023 · 33% below the CA rate
Syphilis
▼ 25.8%11.5per 100k
361 reported cases · 2023 · 29% below the CA rate
HIV
▲ 1.9%262new diagnoses
2023 · rate not published
Source: CDC NCHHSTP AtlasPlus, 2023 release · Orange County CA STD Statistics
There were 262 new HIV diagnoses in Orange County in 2023. HIV is the one infection where how soon you test changes which test you need — an RNA test detects it far earlier than a standard antibody test.
Orange County reported 11,579 chlamydia cases in 2023, a rate of 369.3 per 100,000 residents. Most people who have chlamydia or gonorrhea have no symptoms at all, so waiting for something to feel wrong is not a strategy.
HIV prevention & treatment
PrEP, DoxyPEP & Online Treatment
A test result is the start, not the end. If you are negative and want to stay that way, PrEP and DoxyPEP cut the risk of a future infection. If you are positive, most STIs can be treated without setting foot in a clinic. Both are available to people in Costa Mesa by video visit, prescribed by clinicians licensed in California.
- Treatment & DoxyPEP
Wisp
STI treatment $39 · DoxyPEP from $22
Treatment for an STI, and DoxyPEP, prescribed online. The prescription goes to your pharmacy the same day.
Visit Wisp - HIV PrEP & DoxyPEP
Q Care Plus
$0 for most insured patients
PrEP and DoxyPEP by video visit, with test kits posted to you and follow-up bloodwork tracked between refills.
Visit Q Care Plus - HIV PrEP & DoxyPEP
MISTR
$0 with or without insurance
HIV prevention handled entirely from home: PrEP and the lab work that goes with it, no appointment.
Visit MISTR
Prices depend on your insurance and change frequently — check the provider’s own site before ordering. None of these replace emergency care.
STD testing in Costa Mesa, answered
Where can I find free or sliding-scale STD testing near Costa Mesa?
Among the 10 clinics listed near Costa Mesa, 4 list free testing for at least one infection and 6 list sliding-scale fees. Confirm eligibility and charges before visiting. Free testing is listed at Radiant Health Centers, Families Together of Orange County, Orange County Health Care Agency, LGBT Center of Orange County.
How much does STD testing cost near Costa Mesa?
Among the 10 clinics listed near Costa Mesa, 4 list free testing for at least one infection and 6 charge on a sliding scale based on income. Private lab testing is a flat price paid up front — no insurance is filed, so nothing appears on an explanation of benefits.
Can I get tested on a weekend near Costa Mesa?
3 of the 10 listed clinics publish Saturday hours: Planned Parenthood of Orange and San Bernardino Counties Incorporated, Radiant Health Centers, Serve the People Community Health Center. The partner labs are weekday only, so a Saturday visit means one of the community clinics.
How common are STDs in Costa Mesa?
In 2023, Orange County reported 11,579 chlamydia cases — a rate of 369.3 per 100,000 residents. Gonorrhea was 127.7 per 100,000. There were also 262 new HIV diagnoses in 2023.
Is testing available in Spanish near Costa Mesa?
8 of the 10 listed clinics indicate that Spanish-language services are available, and 7 list PrEP.
- Partner labs
- Quest and Labcorp location directories · checked August 2026
- Public clinics
- CDC GetTested / NPIN directory · retrieved September 4, 2026
- Retailers
- Retailer store directories · updated September 2026
- Statistics
- CDC NCHHSTP AtlasPlus · reporting year 2023
- HIV diagnoses
- CDC HIV Surveillance · reporting year 2023
