STD Testing in Thornton, CO

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

  • 4partner labs
  • 3free clinics
  • 6sliding scale
  • 1insurance 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 $24

Partner labs near Thornton

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

    3.2 mi awayNo appointmentOpen Saturday

    100 E 120Th Ave, Unit F130, Northglenn, CO 80233 · Mon-Fri 7:30 am to 5:00 pm · nearby in Northglenn

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

    4.0 mi awayNo appointment

    12213 Pecos St #600, Westminster, CO 80234 · Mon-Fri 8:00 am to 5:00 pm · nearby in Westminster

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

    6.0 mi awayNo appointment

    7561 W 80Th Ave, Arvada, CO 80003 · Mon-Fri 7:30 am to 4:30 pm · nearby in Arvada

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

    6.1 mi awayNo appointmentOpen Saturday

    14300 Orchard Pky, Broomfield, CO 80023 · Mon-Fri 7:30 am to 5:00 pm · nearby in Broomfield

    $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 Thornton.

Explore testing locations in and near Thornton

Partner lab · 8Clinic · 10every partner lab in Thornton, plus the clinics listed on this page, within 7 miles

Clinics and testing sites near Thornton

No free or low-cost clinic is addressed in Thornton 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 Thornton 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

  • Community health center0.6 mi away

    Clinica Family Health

    Thornton Medical Clinic

    8990 Washington St, Thornton, CO, 80229

    Hours
    Mon 8:00am-5:00pm+2Tue-Thu 8:00am-8:00pm · Fri 8:00am-5:00pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • PrEP
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes

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

    Languages English · Spanish · other languages

    CDC GetTested listing, last updated by the source March 22, 2026. Directory retrieved September 4, 2026.

  • Public health department3.8 mi away

    Adams County Health Department

    Westminster

    1401 W 122nd Ave, Westminster, CO, 80234

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

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

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

    Languages English

    CDC GetTested listing, last updated by the source October 17, 2025. Directory retrieved September 4, 2026.

  • Community health center5.4 mi away

    Salud Family Health Centers

    Commerce City Clinic

    6255 Quebec Pkwy, Commerce City, CO, 80022

    Hours
    Mon-Fri 7:30am-5:00pm
    AppointmentsAppointment required
    FeesFree HIV testing listed
    • HIV & STI testing
    • Treats STIs
    • Medicaid accepted
    • Spanish spoken
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · TB

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

    Languages English · Spanish

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

  • Clinic5.5 mi away

    Pinnacle Pediatrics and Internal Medicine

    13648 Orchard Pkwy, Westminster, CO, 80023

    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

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

    Languages English

    CDC GetTested listing, last updated by the source March 30, 2026. Directory retrieved September 4, 2026.

  • Community health center5.8 mi away

    Tepeyac Community Health Center

    2101 E 48th Ave, Denver, CO, 80216

    Hours
    Mon-Wed 8:00am-5:00pm+3Thu 9:00am-5:00pm · Fri 8:00am-5:00pm · Sat 8:00am-12:00pm
    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 · Hepatitis A · TB

    Treatments STI treatment · PrEP · PEP · HIV care · Hep C treatment · Family planning · Ryan White · HPV vaccine · Hep B vaccine · Free condoms · PrEP navigation · Case management

    Languages English · Spanish

    CDC GetTested listing, last updated by the source June 25, 2026. Directory retrieved September 4, 2026.

  • Public health department6.0 mi away

    The City and County of Broomfield Public Health and Environment

    Reproductive Health

    100 Spader Way, Broomfield, CO, 80020

    Hours
    Tue-Wed 8:30am-4:30pm
    AppointmentsAppointment required
    FeesSliding scale listed
    • HIV & STI testing
    • PrEP
    • Treats STIs
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV

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

    Languages English · Spanish · interpreter available

    CDC GetTested listing, last updated by the source July 8, 2026. Directory retrieved September 4, 2026.

  • Clinic6.3 mi away

    Planned Parenthood of the Rocky Mountains

    Arvada Health Center

    7735 N Wadsworth Blvd, Arvada, CO, 80003

    Hours
    Mon 9:00am-7:00pm+4Tue 10:00am-7:00pm · Wed 8:00am-6:00pm · Thu-Fri 9:00am-7:00pm · Sat 9:00am-3:00pm
    AppointmentsWalk-ins accepted
    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

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

    Languages English · Spanish · interpreter available

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

  • Community health center6.4 mi away

    Denver Health

    La Casa- Quigg Newton Family Health Center

    4545 Navajo St, Denver, CO, 80211

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

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

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

    Languages English · Spanish

    CDC GetTested listing, last updated by the source February 2, 2026. Directory retrieved September 4, 2026.

  • Community organization6.5 mi away

    Mile High Behavioral Healthcare

    Denver Element

    4242 Delaware St, Denver, CO, 80216

    Hours
    Mon-Thu 9:00am-6:45pm+2Fri 9:00am-4:45pm · Sat 9:00am-2:45pm
    AppointmentsAppointment required
    FeesFree STI testing listed
    • HIV & STI testing
    • PrEP
    • Medicaid accepted
    CallWebsiteDirections
    View services

    Tests Chlamydia · Gonorrhea · Syphilis · HIV · Hepatitis C

    Treatments PrEP · Family planning · Ryan White · Free condoms · Harm reduction · PrEP navigation · Case management

    Languages English

    CDC GetTested listing, last updated by the source February 11, 2026. Directory retrieved September 4, 2026.

  • Community health center6.8 mi away

    Inner City Health Center

    Denver Clinic

    3800 York St, Denver, CO, 80205

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

    Tests Chlamydia · Gonorrhea · Syphilis

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

    Languages English

    CDC GetTested listing, last updated by the source March 10, 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 Thornton and online

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

Adams County STD rates

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

Chlamydia

▼ 0.6%

588.2per 100k

3,137 reported cases · 2023 · 35% above the CO rate

Gonorrhea

▼ 9.8%

168.2per 100k

897 reported cases · 2023 · 31% above the CO rate

Syphilis

▼ 5.3%

17.8per 100k

95 reported cases · 2023 · 11% above the CO rate

HIV

▲ 56.9%

80new diagnoses

2023 · rate not published

Source: CDC NCHHSTP AtlasPlus, 2023 release · Adams County CO STD Statistics

There were 80 new HIV diagnoses in Adams 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.

Adams County reported 3,137 chlamydia cases in 2023, a rate of 588.2 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.

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 Thornton by video visit, prescribed by clinicians licensed in Colorado.

  • 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 Thornton, answered

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

Among the 10 clinics listed near Thornton, 3 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 Adams County Health Department, Salud Family Health Centers, Mile High Behavioral Healthcare.

How much does STD testing cost near Thornton?

Among the 10 clinics listed near Thornton, 3 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 Thornton?

3 of the 10 listed clinics publish Saturday hours: Tepeyac Community Health Center, Planned Parenthood of the Rocky Mountains, Mile High Behavioral Healthcare. Some partner labs also open on Saturday — the cards above show which.

How common are STDs in Thornton?

In 2023, Adams County reported 3,137 chlamydia cases — a rate of 588.2 per 100,000 residents. Gonorrhea was 168.2 per 100,000. There were also 80 new HIV diagnoses in 2023.

Is testing available in Spanish near Thornton?

6 of the 10 listed clinics indicate that Spanish-language services are available, and 7 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