STD Testing in Clayton, MO
14 places to get tested — 4 partner labs that need no appointment, and 10 clinics and testing sites near Clayton.
- 4partner labs
- 1free clinic
- 5sliding scale
- 4insurance or fee
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 Clayton
Order online first, then walk in. A urine or blood sample takes about 15 minutes and results come back in 1–2 days.
Labcorp
1.2 mi awayNo appointmentOpen Saturday$10 off orders over $100 applied at checkoutOrder a test for this lab →Quest Diagnostics
3.5 mi awayNo appointmentOpen Saturday$10 off orders over $100 applied at checkoutOrder a test for this lab →Labcorp
3.9 mi awayNo appointmentOpen Saturday$10 off orders over $100 applied at checkoutOrder a test for this lab →Quest Diagnostics
4.4 mi awayNo appointmentOpen Saturday$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 Clayton.
Explore testing locations in and near Clayton
Clinics and testing sites near Clayton
No free or low-cost clinic is addressed in Clayton 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 4 partner labs in Clayton need no appointment and return results in 1–2 days.
- Clinic1.1 mi away
Mercy-GoHealth Urgent Care
Clayton
8321 Maryland Ave, Clayton, MO, 63105
HoursMon-Fri 8:00am-8:00pm+1
Sat-Sun 9:00am-5:00pmAppointmentsWalk-ins acceptedFeesInsurance accepted- STI testing
- Treats STIs
- Medicaid accepted
- Interpretation listed
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Herpes · Hepatitis B · Hepatitis C · Hepatitis A · TB
Treatments STI treatment
Languages English · interpreter available
CDC GetTested listing, last updated by the source August 3, 2026. Directory retrieved September 4, 2026.
- Clinic0.9 mi away
Total Access Urgent Care
Richmond Heights Urgent Care
1005 S Big Bend Blvd, Saint Louis, MO, 63117
HoursMon-Sun 8:00am-8:00pm
AppointmentsWalk-ins acceptedFeesInsurance accepted- HIV & STI testing
- Treats STIs
- Medicaid accepted
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B
Treatments STI treatment · Hep B vaccine
Languages English
CDC GetTested listing, last updated by the source April 7, 2026. Directory retrieved September 4, 2026.
- Clinic1.0 mi away
SLUCare
Family Medicine - University Tower
1034 S Brentwod Blvd, Saint Louis, MO, 63117
HoursMon-Fri 8:30am-5:00pm
AppointmentsAppointment requiredFeesInsurance accepted- HIV & STI testing
- PrEP
- Treats STIs
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B · Hepatitis C · TB
Treatments STI treatment · PrEP · HPV vaccine · Hep B vaccine · PrEP navigation
Languages English
CDC GetTested listing, last updated by the source December 26, 2025. Directory retrieved September 4, 2026.
- Clinic1.3 mi away
SSM Health Saint Marys Hospital
Infectious Disease Clinic
6420 Clayton Rd, St Louis, MO, 63117
HoursMon-Thu 8:30am-5:00pm+1
Fri 8:30am-12:00pmAppointmentsAppointment requiredFeesInsurance accepted- 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 · Ryan White · HPV vaccine · Hep B vaccine · PrEP navigation · Case management
Languages English · Spanish · other languages · interpreter available
CDC GetTested listing, last updated by the source April 20, 2026. Directory retrieved September 4, 2026.
- Community health center2.5 mi away
Betty Jean Kerr Peoples Health Centers
Delmar Location
5701 Delmar Blvd, Saint Louis, MO, 63112
HoursMon-Fri 8:00am-5:00pm
AppointmentsAppointment requiredFeesFree STI testing listed- HIV & STI testing
- PrEP & PEP
- Treats STIs
- Medicaid accepted
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV
Treatments STI treatment · PrEP · PEP · HIV care · Family planning · Ryan White · HPV vaccine · Hep B vaccine · Free condoms · PrEP navigation · Case management
Languages English
CDC GetTested listing, last updated by the source April 5, 2026. Directory retrieved September 4, 2026.
Buy an at-home STD test near Clayton
CVS Pharmacy, Walgreens, Target and Walmart sell over-the-counter test kits near Clayton. 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 · 0.9 mi21 storesWalgreens
Nearest branch · 0.9 mi16 storesTarget
Nearest branch · 1.3 mi3 storesWalmart
Nearest branch · 1.6 mi2 stores
St. Louis County STD rates
Reported cases per 100,000 residents. Change shown against the year before.
Chlamydia
▼ 2.6%635.3per 100k
6,271 reported cases · 2023
Gonorrhea
▼ 8.4%294.7per 100k
2,909 reported cases · 2023
Syphilis
▲ 1.3%16.0per 100k
158 reported cases · 2023
HIV
▼ 1.5%131new diagnoses
2023 · rate not published
Source: CDC NCHHSTP AtlasPlus, 2023 release · St. Louis County, MO
There were 131 new HIV diagnoses in St. Louis 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.
St. Louis County reported 6,271 chlamydia cases in 2023, a rate of 635.3 per 100,000 residents. That is above the national average, which is why routine testing matters here more than it does in most of the country — and most people who have chlamydia or gonorrhea have no symptoms at all, so waiting for something to feel wrong is not a strategy.
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 Clayton by video visit, prescribed by clinicians licensed in Missouri.
- 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 Clayton, answered
Where can I find free or sliding-scale STD testing near Clayton?
Among the 10 clinics listed near Clayton, 1 lists free testing for at least one infection and 5 list sliding-scale fees. Confirm eligibility and charges before visiting. Free testing is listed at Betty Jean Kerr Peoples Health Centers.
How much does STD testing cost near Clayton?
Among the 10 clinics listed near Clayton, 1 list free testing for at least one infection and 5 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 Clayton?
3 of the 10 listed clinics publish Saturday hours: Mercy-GoHealth Urgent Care, Total Access Urgent Care, Planned Parenthood Great Rivers. Some partner labs also open on Saturday — the cards above show which.
How common are STDs in Clayton?
In 2023, St. Louis County reported 6,271 chlamydia cases — a rate of 635.3 per 100,000 residents. Gonorrhea was 294.7 per 100,000. There were also 131 new HIV diagnoses in 2023.
Is testing available in Spanish near Clayton?
5 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
Testing near other Missouri cities
Get tested in Clayton
Results in 1–2 days · no appointment · nothing filed through insurance
