STD Testing in Dardenne Prairie, MO

14 places to get tested — 4 partner labs that need no appointment, and 10 clinics and testing sites near Dardenne Prairie.

  • 4partner labs
  • 5sliding scale
  • 5insurance or fee

Order a test online

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Partner labs near Dardenne Prairie

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

    1.0 mi awayNo appointment

    3449 Pheasant Meadow Dr, Ste 101, O Fallon, MO 63368 · Mon-Fri 6:30 am to 3:00 pm · nearby in O Fallon

    $10 off orders over $100 applied at checkoutOrder a test for this lab →
  • Labcorp

    5.1 mi awayNo appointmentOpen Saturday

    1475 Kisker Rd Ste 140, Saint Charles, MO 63304 · Mon-Fri 6:30 am to 5:00 pm · nearby in Saint Charles

    $10 off orders over $100 applied at checkoutOrder a test for this lab →
  • Labcorp

    5.2 mi awayNo appointment

    1002 Peruque Crossing Ct,#100, O Fallon, MO 63366 · Mon-Fri 8:00 am to 4:30 pm · nearby in O Fallon

    $10 off orders over $100 applied at checkoutOrder a test for this lab →
  • Quest Diagnostics

    7.8 mi awayNo appointmentOpen Saturday

    17300 N Outer 40, Ste 104, Chesterfield, MO 63005 · Mon-Fri 6:30 am to 3:30 pm · nearby in Chesterfield

    $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 Dardenne Prairie.

Explore testing locations near Dardenne Prairie

Partner lab · 8Clinic · 10every partner lab in Dardenne Prairie, plus the clinics listed on this page, within 23 miles

Clinics and testing sites near Dardenne Prairie

No free or low-cost clinic is addressed in Dardenne Prairie 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 Dardenne Prairie 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

  • Clinic1.3 mi away

    Mercy-GoHealth Urgent Care

    O'Fallon

    2991 State Hwy K, O'Fallon, MO, 63368

    Hours
    Mon-Fri 8:00am-8:00pm+1Sat-Sun 9:00am-5:00pm
    AppointmentsWalk-ins accepted
    FeesInsurance accepted
    • STI testing
    • Treats STIs
    • Medicaid accepted
    • Interpretation listed
    CallWebsiteDirections
    View 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.

  • Clinic1.5 mi away

    Total Access Urgent Care

    O'Fallon South Urgent Care

    4201 Hwy K, O'Fallon, MO, 63368

    Hours
    Mon-Sun 8:00am-8:00pm
    AppointmentsWalk-ins accepted
    FeesInsurance accepted
    • HIV & STI testing
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View 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.

  • Community organization2.0 mi away

    Mercy

    Mercy Clinic Primary Care Winghaven

    2223 Technology Dr, O'fallon, MO, 63368

    Hours
    Mon-Fri 8:00am-5:00pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B · Hepatitis C · Hepatitis A · TB

    Treatments STI treatment · Family planning · HPV vaccine · Hep B vaccine · Free condoms · PrEP navigation · Case management

    Languages English

    CDC GetTested listing, last updated by the source November 10, 2025. Directory retrieved September 4, 2026.

  • Clinic6.3 mi away

    Planned Parenthood Great Rivers

    Saint Peters Health Center

    208 Mid Rivers Center, Saint Peters, MO, 63376

    Hours
    Tue 9:00am-5:00pm+1Thu 9:00am-5:00pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • PrEP & PEP
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B · Hepatitis C

    Treatments STI treatment · PrEP · PEP · Family planning · HPV vaccine · Hep B vaccine · Free condoms · PrEP navigation

    Languages English · Spanish · interpreter available

    CDC GetTested listing, last updated by the source May 17, 2026. Directory retrieved September 4, 2026.

  • Community health center6.9 mi away

    Compass Health Network

    Wentzville

    1032 Crosswinds Ct, Wentzville, MO, 63385

    Hours
    Mon 7:00am-6:00pm+1Tue-Fri 7:00am-5:30pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Hepatitis C · TB

    Treatments STI treatment · Family planning · HPV vaccine · Hep B vaccine · Free condoms · Case management

    Languages English

    CDC GetTested listing, last updated by the source February 3, 2026. Directory retrieved September 4, 2026.

  • Public health department11.5 mi away

    Saint Charles County Department of Public Health

    1650 Boones Lick Rd, St Charles, MO, 63301

    Hours
    Mon-Fri 8:00am-5:00pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Hepatitis B · Hepatitis C · TB

    Treatments STI treatment · HPV vaccine · Hep B vaccine · Mpox vaccine · Free condoms

    Languages English

    CDC GetTested listing, last updated by the source August 19, 2026. Directory retrieved September 4, 2026.

  • Clinic15.0 mi away

    OSF HealthCare

    Northwest Infectious Disease

    12776 Boenker Ln, Bridgeton, MO, 63044

    HoursNot listed
    AppointmentsAppointment required
    FeesInsurance accepted
    • HIV & STI testing
    • PrEP
    • Treats STIs
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Hepatitis B · Hepatitis C · TB

    Treatments STI treatment · PrEP · HIV care · Hep C treatment · HPV vaccine · Hep B vaccine

    Languages English

    CDC GetTested listing, last updated by the source July 6, 2026. Directory retrieved September 4, 2026.

  • Clinic21.3 mi away

    SLUCare

    Family Medicine - University Tower

    1034 S Brentwod Blvd, Saint Louis, MO, 63117

    Hours
    Mon-Fri 8:30am-5:00pm
    AppointmentsAppointment required
    FeesInsurance accepted
    • HIV & STI testing
    • PrEP
    • Treats STIs
    CallWebsiteDirections
    View 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.

  • Public health department22.7 mi away

    Lincoln County Health Department

    5 Health Department Dr, Troy, MO, 63379

    Hours
    Mon-Fri 8:00am-4:30pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • Treats STIs
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · TB

    Treatments STI treatment · HPV vaccine · Hep B vaccine

    Languages English

    CDC GetTested listing, last updated by the source October 29, 2025. Directory retrieved September 4, 2026.

  • Clinic23.0 mi away

    SSM Health Saint Marys Hospital

    Infectious Disease Clinic

    6420 Clayton Rd, St Louis, MO, 63117

    Hours
    Mon-Thu 8:30am-5:00pm+1Fri 8:30am-12:00pm
    AppointmentsAppointment required
    FeesInsurance accepted
    • HIV & STI testing
    • PrEP & PEP
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View 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.

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 Dardenne Prairie and online

CVS Pharmacy, Walgreens, Target and Walmart sell over-the-counter test kits near Dardenne Prairie, 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.

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 Dardenne Prairie.

St. Charles County STD rates

Reported cases per 100,000 residents. Change shown against the year before.

Chlamydia

▼ 6%

265.2per 100k

1,105 reported cases · 2023 · 47% below the MO rate

Gonorrhea

▼ 4.5%

67.4per 100k

281 reported cases · 2023 · 67% below the MO rate

Syphilis

▼ 33.8%

5.3per 100k

22 reported cases · 2023 · 75% below the MO rate

HIV

▲ 114.3%

15new diagnoses

2023 · rate not published

Source: CDC NCHHSTP AtlasPlus, 2023 release · St. Charles County MO STD Statistics

There were 15 new HIV diagnoses in St. Charles 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. Charles County reported 1,105 chlamydia cases in 2023, a rate of 265.2 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 Dardenne Prairie 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 Dardenne Prairie, answered

Where can I find free or sliding-scale STD testing near Dardenne Prairie?

Among the 10 clinics listed near Dardenne Prairie, 5 list sliding-scale fees. Confirm eligibility and charges before visiting.

How much does STD testing cost near Dardenne Prairie?

Among the 10 clinics listed near Dardenne Prairie, 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 Dardenne Prairie?

2 of the 10 listed clinics publish Saturday hours: Mercy-GoHealth Urgent Care, Total Access Urgent Care. Some partner labs also open on Saturday — the cards above show which.

How common are STDs in Dardenne Prairie?

In 2023, St. Charles County reported 1,105 chlamydia cases — a rate of 265.2 per 100,000 residents. Gonorrhea was 67.4 per 100,000. There were also 15 new HIV diagnoses in 2023.

Is testing available in Spanish near Dardenne Prairie?

2 of the 10 listed clinics indicate that Spanish-language services are available, and 4 list PrEP.

Data and sources
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