STD Testing in Colorado: Free, Same-Day & Confidential

Among the 50 states and DC, Colorado ranks #32 of 51 for chlamydia, reporting about 435 cases per 100,000 (12% below the U.S. average). Reported counts understate the true total because most infections are silent, which is why routine screening matters statewide.

Since 2020, syphilis is up about 44% in Colorado. Syphilis, including congenital syphilis passed to newborns, is the fastest-growing STI nationally, so prenatal and routine screening are a priority here too.

Colorado reports about 9.6 new HIV diagnoses per 100,000 residents a year, a rate that has risen in recent years. About 61% of residents living with HIV are virally suppressed, undetectable means the virus can't be sexually transmitted (U=U). PrEP and free HIV testing are available across the state.

Colorado reported about 435 chlamydia cases per 100,000 (2023), 12% below the U.S. average of 492. It is the most commonly reported STD here, and often silent, so under-25s and anyone with new partners should screen yearly.

Congenital syphilis, when syphilis passes from parent to baby in pregnancy, is the fastest-rising STI crisis in the U.S. (about 3,882 U.S. cases in 2023), and it is almost entirely preventable with a simple blood test early in pregnancy. Colorado recommends syphilis screening at the first prenatal visit, so testing while pregnant, or before, matters here.

In Colorado, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.

If you use health insurance, an Explanation of Benefits (EOB) may be mailed to the policyholder, which could be a parent or spouse. Under HIPAA (45 CFR 164.522) you can ask your insurer in writing to send communications to you confidentially. Colorado adds its own protection: state law lets an enrollee request that insurance communications, including the Explanation of Benefits, be handled confidentially and sent to them rather than the primary policyholder. To leave no insurance trail at all, use a self-pay private lab, an at-home test kit, or a public health clinic, none of these bill your insurance.

Anonymous HIV testing is available at some sites in Colorado; elsewhere testing is confidential (name-based) but still protected. Public health clinics and at-home kits also let you test without involving insurance or your regular doctor.

Colorado 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.

Colorado's 433 public and community health clinics, county and city health departments, FQHCs, and Title X family-planning sites, test for free or on a sliding scale statewide, which matters where about 7.7% of adults are uninsured. Pick your city below for the specific clinics nearest you.

Free or sliding-scale at Colorado's public clinics and FQHCs (Medicaid accepted); at-home kits run about $50–$150 for a full panel; private walk-in labs charge per test. No one is turned away for inability to pay at public health clinics.

PrEP, a daily pill that prevents HIV, is available across Colorado through health departments, FQHCs, and many primary-care and telehealth providers, often free or low-cost via insurance, Medicaid, or manufacturer assistance programs. Alongside testing and treatment, it's central to the state's HIV response. Any Colorado clinic can start you, or you can begin through a telehealth service.