STD Testing in Colorado

We list 299 public testing locations across 100 cities in Colorado, plus 58 partner lab locations you can order online. 185 of the public sites test for free or on a sliding scale. The public sites are drawn from the CDC GetTested directory, with their fees shown exactly as published.

  • 299public locations
  • 58partner labs
  • 53test for free
  • 132sliding scale
  • 88offer PrEP
  • 118open Saturdays
  • 125speak Spanish

Order a test online

Results in 1–2 days · no appointment · nothing filed through insurance

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Where to get tested in Colorado

The cities with the most testing locations of their own. Every other city page lists the closest sites to it, wherever those happen to be.

All 100 cities in Colorado

Partner labs in Colorado

Order online, then walk in with no appointment. Tap a pin for the address.

Partner lab · 58

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STD rates in Colorado

Reported cases per 100,000 residents, compared with the US rate and ranked against the other states. The badge shows the change from the year before.

Chlamydia

▼ 4.6%

435.1per 100k

25,571 reported cases · 202311% below the US rate (490.7)

Ranks 31st of 50 states

2000–2023 · up 57%

Gonorrhea

▼ 14.4%

128.7per 100k

7,563 reported cases · 202328% below the US rate (178.2)

Ranks 35th of 50 states

2000–2023 · up 79%

Syphilis

▲ 1.9%

16.0per 100k

938 reported cases · 20231% above the US rate (15.8)

Ranks 22nd of 50 states

2000–2023 · up 5233%

HIV

8.9per 100k

444 new diagnoses · 202233% below the US rate (13.3)

Ranks 24th of 50 states

2017–2022 · down 2%

Colorado ranks 31st of 50 states for combined chlamydia, gonorrhea and syphilis: 579.8 per 100k, 15% below the US rate of 684.7.

Counties with the highest rates in Colorado

CountyCombinedChlamydiaGonorrheaSyphilis
San Juan County1,496.31,371.6124.70.0
Denver County1,232.2851.0338.842.4
Adams County774.2588.2168.217.8
Pueblo County772.7523.0208.441.3
Arapahoe County709.1528.2159.721.2
El Paso County585.7452.4118.814.5
Alamosa County522.4438.372.112.0
Morgan County511.4436.967.76.8
Prowers County485.0425.525.534.0
Otero County479.7341.9126.811.0

Per 100,000 residents, 2023. All counties in Colorado →

Source: CDC NCHHSTP AtlasPlus, 2023 release · Colorado STD Statistics

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 in Colorado

myLAB Box ships a kit to any address in Colorado. You collect the sample at home and mail it to a lab, so there is no clinic to reach and no appointment to make.

  • myLAB Box

    Online · ships statewideMail-in kit

    Ordered online and delivered to your door, so there is no trip to make and nothing to ask for at a counter.

    Order a kit →

We earn a commission if you order a myLAB Box kit through the link above. It does not change what you pay.

HIV prevention & treatment

PrEP, DoxyPEP & Online Treatment

A test result is the start, not the end. Both prevention and treatment are available to people in Colorado 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

Common questions about STD testing in Colorado

Where can I get free STD testing in Colorado?

Of the 299 public testing locations we list in Colorado, 53 provide free STD testing and 132 charge on a sliding scale based on income. Open the city closest to you above to see which ones those are, with their fees, hours and phone numbers.

Can I get tested on a weekend in Colorado?

118 of the public locations we list in Colorado publish Saturday hours. Hours change without notice, so call before travelling.

Where can I get PrEP in Colorado?

88 of the public Colorado locations we list offer PrEP. It is also prescribed by video visit statewide, without a clinic appointment.

How common are STDs in Colorado?

Colorado reported 579.8 chlamydia, gonorrhea and syphilis cases per 100,000 residents in 2023, which ranks it 31st of 50 states. The full breakdown, including every county, is on our Colorado STD statistics page.

Do I need insurance to get tested in Colorado?

No. The free and sliding-scale locations listed above do not require it, and an online order is paid directly, so nothing is filed through insurance and no explanation of benefits is generated.