Chlamydia rates in Orange County are about 25% below the US average. Whether you're seeking testing after a possible exposure or just as a part of routine care, clinics in Costa Mesa, California, may offer same-day testing, or you can prefer the convenience of labs or at-home kits.
Available testing centers
11 testing options are listed for Costa Mesa, CA. The nearest, Share Ourselves, 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.
Share Ourselves in Costa Mesa tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding-scale fee open to anyone. Walk-ins are welcome, bacterial infections are treated the same visit, and HPV and hepatitis vaccines are on-site.
Share Ourselves offers Spanish-speaking staff and interpretation services for other languages: meaning someone without a regular English-speaking provider can navigate testing, treatment, and prevention counseling in full without a separate coordination step. That standing capacity makes it a reliable primary point of contact, not a last resort.
Share Ourselves prescribes both PrEP and PEP directly, PrEP requires baseline HIV and kidney-function testing, followed by ongoing monitoring visits to renew the prescription, all handled within the clinic. PEP is similarly managed in-house rather than handed off, so the full medication cycle stays with the same clinical team.
Someone without a regular primary-care provider, and paying on a sliding scale, gains the most from Share Ourselves' broader panel, which adds herpes and hepatitis A, B, and C testing to the core four. Getting those results in one visit, with treatment and vaccination available the same day, closes gaps that usually require multiple separate appointments elsewhere.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Dec 2025 · Source: CDC NPIN + HRSA
Saint Youstina in Costa Mesa meets people between providers, paying cash, or stretching a tight budget with federally qualified standing that legally ties fees to income. Walk-in STI screening covers syphilis, gonorrhea, and chlamydia, with costs scaled to what each patient can actually pay.
Tests offered
Fees & payment
Planned Parenthood of Orange and San Bernardino Counties in Costa Mesa tests for gonorrhea, chlamydia, syphilis, herpes, and HIV on a sliding-scale fee open to everyone, with same-visit treatment for bacterial infections; an appointment is required.
Without Spanish-language clinical communication at Planned Parenthood of Orange and San Bernardino Counties, a patient loses critical detail in the exam room. A symptom misread, a drug interaction missed, a follow-up misunderstood. Spanish is spoken directly here, and interpretation services cover additional languages, so the clinical conversation is complete on the day of the visit.
Without Title X standing, a minor seeking STI testing or family planning faces disclosure to a parent, or goes untested. As a Title X site, Planned Parenthood of Orange and San Bernardino Counties provides legally confidential family planning and STI services to minors, so age alone doesn't block access to care.
Planned Parenthood of Orange and San Bernardino Counties prescribes and monitors daily oral PrEP for ongoing HIV prevention, PEP when indicated, and DoxyPEP, a doxycycline regimen taken after a potential bacterial STI exposure, all managed by the clinical staff here rather than coordinated across separate providers.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Aug 2025 · Source: CDC NPIN
AltaMed PACE - Santa Ana draws on federally qualified health center standing to anchor its sliding-scale STI screening in Santa Ana, calibrating fees to each patient's income. Walk-ins are welcome for syphilis, gonorrhea, and chlamydia testing. No appointment needed, no fixed price regardless of coverage.
Tests offered
Fees & payment
Share Our Selves Community Health Center in Costa Mesa carries federally qualified status, which means STI screening (syphilis, gonorrhea, and chlamydia) is priced on a sliding scale tied to what patients actually earn, making the cost fit the person rather than the other way around.
Tests offered
Fees & payment
CLCHC-Bridge Shelter in Costa Mesa welcomes patients without an appointment, making it easy to act on a concern the same day. Federally qualified status underpins its sliding-scale fees, so a single walk-in visit can cover syphilis, gonorrhea, and chlamydia screening, with costs adjusted to income.
Tests offered
Fees & payment
SOS Children & Family Health Center in Newport Beach welcomes walk-in patients for STI screening without requiring an appointment. Federally qualified status anchors its sliding-scale fee structure, tying costs to income. A single visit can cover syphilis, gonorrhea, and chlamydia testing for anyone who walks through the door.
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 Costa Mesa, 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 Orange 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.
301 Victoria Street, Costa Mesa, CA 92627
CMS-certified lab Accredited · College of American Pathologists
3151 Airway Avenue, Suite M1, Costa Mesa, CA 92626
CMS-certified lab Accredited · College of American Pathologists
1640 Newport Ave Suite 100, Costa Mesa, CA 92627
CMS-certified lab Accredited · College of American Pathologists
245 Fischer Ave Suite D5, Costa Mesa, CA 92626
CMS-certified lab
2729 Bristol Street, Costa Mesa, CA 92626
CMS-certified lab
Showing the nearest 5 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Costa Mesa. 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, 4,836 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Costa Mesa. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 1,831 offer telehealth.
Jefferey Bloom, DO
Family medicine · 3140 Red Hill Avenue, Costa Mesa
Isaac Beshay, MD
Family medicine · 2200 Harbor Boulevard, Costa Mesa
Maryam Abdelnaby, MD
Internal medicine · 301 Victoria Street, Costa Mesa
Adnan Akhtar, DO
Internal medicine · 301 Victoria Street, Costa Mesa
Matthew Ng, MD
Family medicine · 1190 Baker Street, Costa Mesa
Mary Moon, MD
Family medicine · 1190 Baker Street, Costa Mesa
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 Costa Mesa, 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.
0.4 mi Steven's Pharmacy
0.5 miMesa Verde Pharmacy
0.5 mi
0.8 mi Ramsay Rexall Drug
0.9 miShowing the 5 closest pharmacies to Costa Mesa, 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 Costa Mesa, 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.
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
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
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 Orange County, the county that includes Costa Mesa, 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.
#24 of 58 California counties for chlamydia, a higher rate than 59% of the state
| Infection | Orange County | California | United States |
|---|---|---|---|
| Chlamydia | 369.3 11,579 cases ▼ 25% | 491.1 | 492.2 |
| Gonorrhea | 127.7 4,005 cases ▼ 33% | 190.2 | 179.5 |
| Syphilis (P&S) | 11.5 361 cases ▼ 29% | 16.3 | 15.8 |
| Syphilis (early) | 8.9 279 cases ▼ 53% | 19.1 | 16 |
| Syphilis (late/unknown) | 27.5 862 cases ▼ 41% | 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 Orange County, chlamydia has risen from 344.1 to 369.3 per 100,000 (7%), gonorrhea has fallen from 143.7 to 127.7 per 100,000 (11%), and P&S syphilis has fallen from 15.6 to 11.5 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
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 Orange County.
Local HIV snapshot
Federal priority area: Orange County is one of 48 U.S. counties prioritized under the Ending the HIV Epidemic initiative: targeted federal funding to expand local HIV testing, PrEP, and prevention.
Orange County HIV care continuum (2023)
Orange County recorded 9.7 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Orange County residents living with HIV, 80.3% know their status · 71.3% are in care · 64.8% 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 Orange County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
College Park sits at the quieter residential edge of Costa Mesa, where households tend to run large and a good share of adults are out the door early: the city's labor-force participation is among the higher ends you'd find in Southern California, meaning schedules are tight and weekday appointments are genuinely hard to keep. That same rhythm shapes South Mesa and the streets running off Harbor Boulevard, where the majority of residents rent rather than own, paying rents that leave limited room for anything that feels discretionary: including a clinic visit that requires planning, time off, or a copay someone wasn't expecting. Those pressures land hardest on people in their late teens and twenties, who make up a substantial slice of Costa Mesa's population and also experience chlamydia, gonorrhea, and syphilis at rates that track closely with Orange County's elevated county figures.
For that crowd (often renting their first apartment, juggling shift work, or still sorting out insurance) the testing options listed here range in cost and hours precisely because no single format works for everyone. A lunch break from the stretch near the Orange County Museum of Art can realistically cover it.
Getting there
Costa Mesa scores 14.01/20 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 92627 snapshot
ZIP-level Census figures for the wider 92627 area around Costa Mesa: a single ZIP can span several communities, so they describe the area, not Costa Mesa alone.
Costa Mesa sits in Orange County, ZIP 92627. Local context that shapes where residents test:
Local landmarks
Neighborhoods & communities
Major routes
Nearby cities & towns
Just outside Costa Mesa? 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 Orange 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 Costa Mesa-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 Costa Mesa 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.
The closest is Share Ourselves (0.8 mi); 11 options are within 30 miles.
Medicaid generally covers STD testing, and public clinics test for free regardless of coverage.
Yes, public clinics in the area offer free or low-cost testing.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 369 cases per 100,000 residents (2023), below the California average.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
In California, people under 18 can consent to confidential STD testing and treatment on their own.
Yes, at-home kits ship to 92627; you collect a sample, mail it back, and get results in about 2–5 days.
It means an infection was found; a provider confirms it and starts treatment, most STIs are curable or manageable.
Medical records are protected under federal HIPAA law, ask the clinic how it handles your information.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.