In Boulder County, new HIV diagnoses run about 62% lower than the US average. Whether you need testing after a possible exposure or as part of routine care in Longmont, Colorado, you can choose between immediate walk-in testing at some clinics and the scheduling convenience of labs or at-home kits.
Available testing centers
12 testing options are listed for Longmont, CO. The nearest, Salud Family Health Centers, is about 0.8 miles away. Compare community and public clinics, private labs, and at-home kits below.
Listings tagged Community health center are federally funded health centers and rural clinics that treat everyone regardless of insurance or ability to pay: required to bill on a sliding fee scale and provide confidential care, and in many states minors may consent to their own STI testing. A Title X tag flags centers funded for confidential family-planning services; confirm current participation when you call.
Source: CMS FQHC & Rural Health Clinic enrollment files (data.cms.gov), refreshed quarterly. Title X status reflects the latest OPA grantee list.
Salud Family Health Centers in Longmont accepts Medicaid, Medicare, and private insurance, with sliding-scale fees covering everyone else: making gonorrhea, chlamydia, syphilis, and conventional HIV testing available alongside HPV and hepatitis A and B vaccines. Appointments are required.
When clinical nuance (exposure timelines, symptom specifics, treatment instructions) has to travel through an intermediary, something gets dropped. At Salud Family Health Centers, STI care is conducted directly in Spanish, so the conversation between patient and provider stays complete, and nothing falls through that gap into an untreated condition.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jan 2026 · Source: CDC NPIN + HRSA
Clinica Family Health & Wellness -- Wellness Education Center, in Longmont, earns its federal qualification by tying fees directly to what patients earn. Meaning no one is priced out of care. Walk-ins are welcome for STI screening covering syphilis, gonorrhea, and chlamydia, with costs scaled to income.
Tests offered
Fees & payment
Salud Frederick in Longmont welcomes walk-ins for STI screening without an appointment. Backed by federal qualification that anchors a sliding-scale fee structure tied to income, a single visit can cover syphilis, gonorrhea, and chlamydia testing. Making same-day care a realistic option for anyone.
Tests offered
Fees & payment
Clinica Family Health & Wellness -- Dixon Clinic, in Lafayette, anchors its STI care in a sliding-scale fee structure tied to income. No one is turned away for inability to pay. Walk-ins are welcome for syphilis, gonorrhea, and chlamydia screening at this federally qualified health center.
Tests offered
Fees & payment
Boulder Valley Health Center tests for gonorrhea, chlamydia, syphilis, herpes, hepatitis C, and HIV on a sliding-scale fee open to anyone; bacterial infections can be treated the same visit. Appointments are required.
Boulder Valley Health Center tests for both herpes and hepatitis C alongside the standard four, which means a single visit can surface infections that a narrower panel would leave undetected, and treatment or management can begin without an additional appointment elsewhere.
Without PrEP or PEP available at the clinic you already see, prevention becomes a separate errand. A second appointment, a second provider, a gap during which exposure risk continues. Boulder Valley Health Center prescribes both, closing that gap at the same location where testing and treatment happen.
Spanish-language care at Boulder Valley Health Center operates at the clinical level: providers conduct exams, discuss medication protocols, and explain diagnoses in Spanish, so nothing is filtered through a secondary layer before it reaches the patient.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN
Boulder Community Health tests for hepatitis B, hepatitis C, TB, and HIV, rapid or conventional, on a sliding scale open to everyone, with appointments required and bacterial STIs treated the same visit, all services provided at no fee.
Boulder Community Health carries both PrEP and DoxyPEP on its formulary, and neither generates a charge. Not a co-pay, not a balance. For uninsured patients, PrEP is explicitly covered. Two prevention medications, one fee structure: none.
Spanish-language services at Boulder Community Health run through the clinical staff themselves: counseling, medication adherence education, and hepatitis and HIV treatment conversations all happen in Spanish as the primary language of care, not as an accommodation routed through a secondary channel.
Without Ryan White funding, a positive HIV result can leave someone holding a diagnosis but waiting weeks for a prescriber and facing costs that delay antiretroviral therapy. Boulder Community Health absorbs that gap: Ryan White supports the full continuum here, from initial testing through ongoing HIV/AIDS medical treatment and medication adherence counseling, in one clinic.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN
Clinica Family Health in Lafayette tests for gonorrhea, chlamydia, syphilis, herpes, and HIV on a sliding-scale fee accepted by Medicaid, Medicare, and most insurers, appointments required, with same-visit treatment for bacterial infections and care delivered in Spanish and Vietnamese.
Clinica Family Health conducts STI care directly in Spanish and Vietnamese: meaning clinical conversations, counseling, and treatment decisions happen in those languages from the first question to the last instruction, without an intermediary step between the patient and the provider.
Clinica Family Health carries standing prescribing capability for both PrEP and PEP, the daily prevention medication and the post-exposure course, which means someone without a regular provider, or one paying out of pocket on a sliding scale, can access either medication in a single appointment rather than navigating a separate prescriber.
Clinica Family Health's panel runs to five infections (gonorrhea, chlamydia, syphilis, HIV, and herpes) where herpes testing is a named, scheduled component rather than an add-on, giving a more complete picture of viral and bacterial exposure in one appointment.
Languages
English, Spanish, Vietnamese
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Mar 2026 · Source: CDC NPIN + HRSA
Planned Parenthood of the Rocky Mountains in Boulder tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding-scale fee with walk-ins welcome; same-visit treatment is available for bacterial infections, and care is delivered in ASL and Spanish.
When language isn't handled in the room, follow-up instructions get lost, treatment gets delayed, and a treatable infection becomes a longer problem. Planned Parenthood of the Rocky Mountains delivers care directly in American Sign Language and Spanish, with interpretation available for other languages, so nothing critical passes through a broken chain.
Walk-in sexual health clinics frequently operate without Title X designation, which means legally confidential family planning services for minors simply aren't on offer. Planned Parenthood of the Rocky Mountains holds that Title X status, making confidential care for minors a defined, protected part of what this Boulder location does.
PrEP, including branded regimens like Truvada and Descovy, is prescribed and managed at Planned Parenthood of the Rocky Mountains alongside PEP, meaning both prevention pathways are clinic-level services with built-in follow-up, not one-time handoffs. Uninsured patients can access PrEP through the clinic's dedicated program.
Languages
American Sign Language, English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jun 2026 · Source: CDC NPIN
Free tool · not a clinic
Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each STI.
| Infection | Earliest reliable test | Conclusive after |
|---|---|---|
| Chlamydia | 7 days after exposure | 14 days after exposure |
| Gonorrhea | 7 days after exposure | 14 days after exposure |
| Trichomoniasis | 7 days after exposure | 28 days after exposure |
| HIV (NAT / RNA) | 10 days after exposure | 33 days after exposure |
| HIV (4th-gen Ag/Ab) | 18 days after exposure | 45 days after exposure |
| HIV (antibody) | 21 days after exposure | 84 days after exposure |
| Syphilis | 21 days after exposure | 42 days after exposure |
| Hepatitis B | 21 days after exposure | 42 days after exposure |
| Hepatitis C | 56 days after exposure | 77 days after exposure |
| Herpes (HSV) | 28 days after exposure | 112 days after exposure |
Guidance only, confirm timing with a clinician. A negative result before the conclusive date may need a repeat test.
Typical out-of-pocket ranges by option, actual cost depends on which tests you need.
Public / community clinic
Free HIV testing is common
Private lab (self-pay)
Never billed to insurance
At-home kit
Mailed to your door, private
Doctor / urgent care
Often $0 preventive with insurance
No centers match those filters. Clear the service-type filter or the opening-hours filters to see every center.
Every other option
Beyond the dedicated testing centers above: at-home kits by mail, hospital labs certified for STI testing, local clinicians who can order a panel during a regular visit, pharmacies for self-test kits and prescriptions, and online PrEP & treatment.
Test from home
The nearest testing center is less than a mile away; if you'd rather skip the trip, an at-home kit ships to Longmont, you collect the sample privately, and mail it back to a CLIA-certified lab. Results come online in days, with a clinician available if anything is positive. Same labs as a clinic, no waiting room, and you can read how accurate at-home STD tests are before you order.
Want a free option first? The CDC-supported TakeMeHome (opens in a new tab) program mails free at-home HIV self-test kits, and, in many areas, free STI kits, to your door, with no insurance or payment needed. The paid kits below add broader panels and faster turnaround.
In-home collection
$79 & up
Best range: couples & full panels
$79 & up
Best for simplicity & support
$89 & up
Every kit uses CLIA-certified labs. At-home testing is for screening; a reactive result should be confirmed and treated by a clinician. Prices and panels shown are illustrative and change often, confirm current details on the provider's site.
Also in the area
Beyond the public testing sites above, these federally certified (CLIA) labs serve Boulder County, each lab's town is shown on its card below. Many test through a doctor's order or by appointment rather than walk-in, so call ahead to confirm STD/STI testing and availability before visiting.
1950 West Mountain View Avenue, Longmont, CO 80501
CMS-certified lab Accredited · College of American Pathologists
1750 East Ken Pratt Boulevard, Longmont, CO 80504
CMS-certified lab Accredited · College of American Pathologists
1925 West Mountain View Avenue, Longmont, CO 80501
CMS-certified lab
916 South Main Street, Suite 201, Longmont, CO 80501
CMS-certified lab
205 South Main Street, Suite East, Longmont, CO 80501
CMS-certified lab
Showing the nearest 5 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Longmont. A CLIA certificate records only that a laboratory is federally certified — it does not confirm the site performs STD testing, nor its hours, price or access. Inclusion is not an endorsement; always call to verify.
Local clinicians
Beyond dedicated clinics, 1,281 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Longmont. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 428 offer telehealth.
Kirk Mitchell, MD
Family medicine · 5390 Saint Vrain Road, Longmont
Bianca Bryant-Greenwood, MD Telehealth
Family medicine · 8350 Colorado Boulevard, Firestone
Mary Barrett, MD
OB-GYN · 231 East 9th Avenue, Longmont
Michael Allen, DO
Family medicine · 220 East Rogers Road, Longmont
Stephen Haskew, MD
Family medicine · 1351 Collyer Street, Longmont
James Fretwell, MD Telehealth
Family medicine · 205 South Main Street, Longmont
These are registry-listed clinicians, not dedicated STD-testing clinics. CMS records do not independently verify current licensure, testing services, availability, price, or new-patient status. Confirm each detail before booking. Source: CMS Doctors & Clinicians.
Nearby pharmacies
No pharmacy near Longmont, CO publishes an STD-related service or holds a current CLIA testing certificate, so these are simply the closest. Contact a location directly to confirm counter hours, services, prices, and availability before visiting.
0.6 mi Hopelight Pharmacy
1.0 miFlatirons Family Pharmacy
1.1 mi
1.2 mi Showing the 4 closest pharmacies to Longmont, CO.
Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.
Prevention & treatment
Testing is one step. For residents of Longmont, telehealth covers the rest: HIV-prevention medication (PrEP) and DoxyPEP to lower future risk, and discreet online treatment if a result comes back positive. All prescribed by licensed U.S. clinicians.
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions to your pharmacy
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
From $0 insured
Telehealth PrEP & DoxyPEP with at-home testing and ongoing monitoring
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
Pricing varies by insurance and changes often, confirm on the provider's site. These services are not a substitute for emergency care.
STD stats & rates
How reported STI rates in Boulder County, the county that includes Longmont, compare with Colorado and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~27% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#21 of 64 Colorado counties for chlamydia, a higher rate than 67% of the state
| Infection | Boulder County | Colorado | United States |
|---|---|---|---|
| Chlamydia | 326.2 1,066 cases ▼ 25% | 435.1 | 492.2 |
| Gonorrhea | 74.4 243 cases ▼ 42% | 128.7 | 179.5 |
| Syphilis (P&S) | 5.2 17 cases ▼ 67% | 16 | 15.8 |
| Syphilis (early) | 2.4 8 cases ▼ 77% | 10.4 | 16 |
| Syphilis (late/unknown) | 5.5 18 cases ▼ 81% | 28.4 | 29.5 |
Rates per 100,000 population, 2023. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis). Population figures: U.S. Census Bureau ACS. These figures are the latest available surveillance estimates. Bars are scaled to the highest rate shown.
Reading these numbers: reported case rates only count infections that were actually tested for and diagnosed, so they track local screening effort as much as true spread: a higher rate can reflect more testing, a lower one less. Either way, most STIs cause no symptoms, so treat the figures above as context rather than a verdict, and test on the CDC's schedule regardless of how your area looks.
Between 2020 and 2023 in Boulder County, chlamydia has fallen from 338.6 to 326.2 per 100,000 (4%), gonorrhea has risen from 66.2 to 74.4 per 100,000 (12%), and P&S syphilis has fallen from 6.7 to 5.2 per 100,000 (22%).
The 2020 dip reflects reduced pandemic-era screening, not lower transmission. Source: CDC NCHHSTP AtlasPlus (county, state & U.S., all-ages basis).
Community health context
Sources: CDC PLACES (ZIP), County Health Rankings, CDC/ATSDR SVI, HRSA HPSA, HRSA MUA/P, Neighborhood Atlas ADI. Lower insurance coverage, fewer routine checkups, and a thin primary-care ratio all raise the value of low-cost public clinics and at-home testing in Boulder County.
Local HIV snapshot
Boulder County HIV care continuum (2023)
Boulder County recorded 5.2 new HIV diagnoses per 100,000 (2023), against 9.6 statewide and 13.7 nationally. Among Boulder County residents living with HIV, 63.4% are in care · 59.2% are virally suppressed. Early, routine testing is what moves these numbers: it is the entry point to PrEP, treatment, and viral suppression.
Sources: AIDSVu (Emory/Gilead) · CDC AHEAD · CDC AtlasPlus · CDC NCHHSTP AtlasPlus (county care continuum). The CDC recommends everyone aged 13–64 test for HIV at least once: every lab and clinic listed above offers HIV testing, and free rapid HIV testing is available at a local health department.
Congenital syphilis, passed from parent to baby in pregnancy, is the fastest-rising STI in the country. U.S. cases climbed from 2,163 in 2020 to 3,882 in 2023. It is almost entirely preventable: the CDC recommends a syphilis test at the first prenatal visit, and every clinic and lab listed for Boulder County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Longmont's name traces to the long ridge of mountains forming its eastern horizon, a geography that has anchored the town through more than a century of growth. Today, the community draws a working population that values efficiency and straightforward access to health services. STI testing in and around Longmont reflects that practical character: clinics and providers listed on this page operate with the understanding that people here are busy, balancing jobs and family commitments, and need screening that fits into real schedules. Young adults who make up a visible part of Longmont's population often seek testing without fanfare, and the available services respect that need for privacy. Confidentiality here isn't treated as an afterthought; it's built into how testing is managed, so results remain between you and your provider.
Whether you're new to the area or have lived here through Longmont's changes, the clinics serving the region understand that routine screening is straightforward health maintenance, not a crisis. Access to testing doesn't require a long search. Providers in and around town offer appointments that accommodate work schedules and make the process direct and respectful. The goal is simple: get tested, get results, move forward with your health.
Getting there
Longmont scores 14.02/20 on the EPA walkability index, so many trips are walkable or a short ride, though a car still gives you the widest choice of testing centers.
Source: EPA National Walkability Index 2021.
ZIP 80504 snapshot
ZIP-level Census figures for the wider 80504 area around Longmont: a single ZIP can span several communities, so they describe the area, not Longmont alone.
Longmont sits in Boulder County, ZIP 80504. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Longmont? These nearby communities have their own testing guides: clinics, at-home kits, and free screening close to home.
Reference
Everything to know before you test in Boulder County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Colorado law. If you have symptoms right now, our confidential symptom checker maps them to the tests worth considering.
Based on current CDC screening recommendations.
| Group | Tests | How often |
|---|---|---|
| Everyone aged 13–64 | HIV | At least once |
| Sexually active women under 25 | Chlamydia, gonorrhea | Every year |
| Women 25+ with new or multiple partners | Chlamydia, gonorrhea | Every year |
| Pregnant people | HIV, syphilis, hepatitis B & C, chlamydia | Early in pregnancy |
| Gay & bisexual men (MSM) | Chlamydia, gonorrhea, syphilis, HIV | Every 3–6 months |
| Anyone who shares injection equipment | HIV, hepatitis B & C | At least yearly |
| All adults at least once | Hepatitis C | At least once |
Testing too early can return a false negative, confirm timing with a Longmont-area provider.
| Infection | Earliest reliable test | Sample |
|---|---|---|
| Chlamydia | 1–2 weeks | Urine or swab |
| Gonorrhea | 1–2 weeks | Urine or swab |
| Trichomoniasis | 1–4 weeks | Urine or swab |
| HIV (NAT / RNA) | 10–33 days | Blood |
| HIV (4th-gen Ag/Ab) | 18–45 days | Blood |
| HIV (antibody) | 3–12 weeks | Blood / oral |
| Syphilis | 3–6 weeks | Blood |
| Hepatitis B | 3–6 weeks | Blood |
| Hepatitis C | 8–11 weeks | Blood |
| Herpes (HSV) | 4–16 weeks (antibody); swab a sore | Blood / swab |
These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Longmont often test free or on a sliding scale; private labs and at-home kits bundle several tests into one fee. Use this as a per-test benchmark before you pay out of pocket, or see the full guide to STD test costs for insurance, free, and at-home options.
| Test | Reference price | CPT / HCPCS |
|---|---|---|
| Chlamydia (NAAT) | $47.80 | 87491 |
| Gonorrhea (NAAT) | $47.80 | 87591 |
| Trichomoniasis (NAAT) | $47.76 | 87661 |
| HIV-1/2 antigen/antibody | $26.87 | 87389 |
| HIV-1/2 antibody | $22.44 | 86703 |
| Syphilis (RPR/VDRL) | $5.61 | 86592 |
| Syphilis (treponemal antibody) | $17.49 | 86780 |
| Herpes (HSV NAAT) | $47.76 | 87529 |
| Hepatitis B surface antigen | $15.33 | 87340 |
| Hepatitis C antibody | $29.16 | 86803 |
Source: Medicare Clinical Laboratory Fee Schedule, CMS, 2025 rates (data.cms.gov). Reference rate for the lab assay only: a clinic visit, sample collection, or a bundled multi-test panel may cost more. Medicaid and most insurers cover STD screening at no out-of-pocket cost.
Two things that actually depend on Colorado law: who can consent, and whether partners can be treated without their own visit. Everything else about testing privately is the same nationwide (see below).
In Colorado, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
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.
Keeping a test private works the same in every state. Whether an STD test shows on insurance (the EOB), how to test anonymously, and self-pay options that leave no insurance trail don’t change by location.
Learn more about confidential STD testing in ColoradoSource: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.
Good to Know
Answers to the questions people ask most before getting tested.
Yes, several local labs offer same-day walk-in testing; best to call first.
Yes, Medicaid typically covers it, and public clinics are free either way.
Public clinics serve people without insurance, often on a sliding scale.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
Boulder County reported ~326 chlamydia cases per 100,000 in 2023, below the Colorado average.
In Colorado, people under 18 can consent to confidential STD testing and treatment on their own.
Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.
Untreated chlamydia can lead to pelvic inflammatory disease and fertility problems, caught early, it's cured with antibiotics.
Reputable kits use the same lab methods as clinics; any positive should be confirmed and treated by a provider.
Get treated, notify partners, pause sex until cleared, and follow up, the infection is manageable.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.