There are about 60% fewer cases of syphilis in Collin County than in the US as a whole. For those in Princeton, Texas seeking peace of mind before starting a new relationship or as part of ongoing care, both community clinics and private labs are available. Clinics may be lower-cost, while private labs might offer faster results and more flexible scheduling. Below are your options.
Available testing centers
9 testing options are listed for Princeton, TX. The nearest, CommonGood Medical, is about 6.6 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.
CommonGood Medical in McKinney pairs same-visit treatment for bacterial STIs with testing for gonorrhea, chlamydia, syphilis, HIV, hepatitis B and C, and TB. All on a sliding scale, with appointments required. Every service runs at no fee.
CommonGood Medical operates entirely on donated and grant funding, which is what eliminates the fee line rather than a waiver or case-by-case discount. No charge is applied at scheduling, at the visit, or after. The zero-cost structure is baked into how the clinic is funded, not negotiated at the front desk.
Spanish-language care at CommonGood Medical is staffed directly: clinical conversations, history-taking, and counseling happen in Spanish with the provider, not relayed through a separate service. That means medication instructions, STI education, and follow-up guidance are given and confirmed in Spanish on the same visit.
CommonGood Medical runs hepatitis B and C testing as part of its standing panel alongside gonorrhea, chlamydia, syphilis, and HIV. Hepatitis B vaccination is also available on-site, and HIV/AIDS medical treatment is managed directly. Meaning diagnosis and ongoing care stay within the same clinic.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Dec 2025 · Source: CDC NPIN
Collin County Health Care Services in McKinney requires an appointment, so scheduling is the first step, but that single visit covers gonorrhea, chlamydia, syphilis, HIV, herpes, and hepatitis testing, bacterial STI treatment, mpox and hepatitis A and B vaccines, and sliding-scale fees that extend to every service at no charge.
A separate lab bill, a prescription copay, or a vaccine charge can each quietly derail follow-through. Leaving a diagnosis handled halfway. At Collin County Health Care Services, the sliding-scale extends to zero for every service on the visit: testing, treatment, and vaccines included, with nothing held back behind a separate payment step.
Many clinics serve Spanish-speaking patients through borrowed solutions, a staff member filling in, a device held up between two people. Collin County Health Care Services delivers care in Spanish directly, so the clinical conversation about symptoms, history, and treatment happens without a layer of improvisation between the patient and the provider.
Someone without a regular provider (paying on a sliding scale, handling everything in one visit) needs a panel that doesn't leave gaps to chase elsewhere. Collin County Health Care Services tests for herpes and hepatitis A, B, and C alongside gonorrhea, chlamydia, syphilis, and HIV, closing the loop rather than generating a second appointment somewhere else.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jul 2025 · Source: CDC NPIN
Carevide in Farmersville tests for gonorrhea, chlamydia, syphilis, HIV, and hepatitis on a sliding-scale fee open to all; same-visit treatment is available for bacterial infections. Appointments are required.
Spanish is spoken on-site at Carevide, and interpretation services extend to other languages as well. That means counseling, test results, and treatment instructions move through the same conversation. Not filtered through a separate step after the clinical work is done.
Carevide's panel runs to herpes, hepatitis B, and hepatitis C alongside the core bacterial and HIV tests. Each of those requires its own specimen type and lab pathway (herpes via swab or blood serology, hepatitis via specific antibody and antigen markers) so the clinic is operationally set up to run all six in a single appointment.
Languages
English, Interpretation Services Available for Non-English Languages, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 2026 · Source: CDC NPIN + HRSA
Family Health Center on Virginia in McKinney tests for gonorrhea, chlamydia, syphilis, HIV, herpes, and hepatitis C. A panel that covers more ground than most walk-in options. Fees run on a sliding scale with Medicaid, Medicare, and private insurance accepted; appointments are required.
Languages
English
Tests offered
Care services
Prevention services
Fees & payment
Listing verified Jul 2025 · Source: CDC NPIN + HRSA
Women's Health Center of McKinney anchors its STI care in a sliding-scale fee structure tied directly to income, so cost is never a barrier to being seen. Walk-ins are welcome for syphilis, gonorrhea, and chlamydia screening at this federally qualified health center in McKinney.
Tests offered
Fees & payment
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 about 7 miles away; if you'd rather skip the trip, an at-home kit ships to Princeton, 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 value: single tests
$49 & up
Best range: couples & full panels
$79 & 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 Collin 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.
4461 Coit Road Suite 100, Frisco, TX 75035
CMS-certified lab Accredited · COLA
1100 Allied Dr 4th Floor, Plano, TX 75093
CMS-certified lab Accredited · Joint Commission
1865 Summit Ave # 610, Plano, TX 75074
CMS-certified lab Accredited · College of American Pathologists
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Princeton. 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, 2,084 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Princeton. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 744 offer telehealth.
Michael Williams, DO
Family medicine · 275 Holder Trail, Mckinney
Ellaheh Ebrahim, MD
Family medicine · 1620 West Virginia Street, Mckinney
Ann Snyder, MD Telehealth
Family medicine · 4561 Medical Ctr Drive, Mckinney
Ambreen Ashfaque, MD Telehealth
Family medicine · 4201 Medical Ctr Drive, Mckinney
Michael Parisi, DO Telehealth
Internal medicine · 4501 Medical Ctr Drive, Mckinney
Brock Pierce, MD
OB-GYN · 4510 Medical Ctr Drive, Mckinney
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 Princeton, TX 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.
Thirumala Group
0.3 mi
0.5 mi 
0.5 mi Medicine Shoppe
0.7 miPrinceton Pharmacy
0.7 miShowing the 5 closest pharmacies to Princeton, TX.
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 Princeton, 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 $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
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
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 Collin County, the county that includes Princeton, compare with Texas and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~29% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#154 of 254 Texas counties for chlamydia, a higher rate than 39% of the state
| Infection | Collin County | Texas | United States |
|---|---|---|---|
| Chlamydia | 256.8 3,070 cases ▼ 48% | 491.9 | 492.2 |
| Gonorrhea | 86.3 1,032 cases ▼ 51% | 176.4 | 179.5 |
| Syphilis (P&S) | 6.3 75 cases ▼ 58% | 15 | 15.8 |
| Syphilis (early) | 16.3 195 cases ▼ 38% | 26.4 | 16 |
| Syphilis (late/unknown) | 8.4 100 cases ▼ 81% | 44.3 | 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 Collin County, chlamydia has risen from 221.5 to 256.8 per 100,000 (16%), gonorrhea has risen from 76.8 to 86.3 per 100,000 (12%), and P&S syphilis has risen from 2.1 to 6.3 per 100,000 (200%).
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 Collin County.
Local HIV snapshot
Collin County HIV care continuum (2023)
Collin County recorded 10.7 new HIV diagnoses per 100,000 (2023), against 20.2 statewide and 13.7 nationally. Among Collin County residents living with HIV, 79.9% are in care · 70.5% 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 Collin County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Princeton's homeownership majority tells a particular story: most households here have laid down roots (mortgages, yards, longer-term ties to the community) while the renting third tends to skew younger, more transient, and at the exact life stage when STI exposure is statistically highest. Those younger adults in their late teens and twenties are often juggling first jobs, shared households, and the kind of packed schedule that comes with Princeton's strong labor-force participation. When a workday stretches and evening obligations stack up, a clinic visit can quietly drop off the list before it ever had a chance. Getting around town without a car isn't straightforward here (US 380 is built for driving, not walking) so reaching any of the listed testing options realistically means finding a ride or carving out time behind the wheel.
That's a real consideration for renters paying over $1,300 a month, where budget pressure shapes every discretionary hour. Households earning six figures make up a meaningful slice of Princeton, but that leaves a substantial portion of residents for whom out-of-pocket costs genuinely factor into the decision. Collin County's STI picture underscores why routine screening belongs in the same mental category as any other health errand, not a special occasion, but a practical one. With the parks along Trails at Riverstone and the stretch of East Princeton Drive already part of everyday life here, the clinics on this page are part of the same landscape.
Getting there
At 5.45/20 on the EPA walkability index, day-to-day errands in Princeton generally mean driving: plan on a car or rideshare to reach a clinic, and check each listing's hours and phone before you go.
Source: EPA National Walkability Index 2021.
ZIP 75407 snapshot
ZIP-level Census figures for the wider 75407 area around Princeton: a single ZIP can span several communities, so they describe the area, not Princeton alone.
Princeton sits in Collin County, ZIP 75407. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Princeton? 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 Collin County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Texas 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 Princeton-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 Princeton 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 Texas 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 Texas, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
Texas 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 TexasSource: 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.
There are 9 options within a 30-mile drive.
Free at public clinics. Private labs run about $24 for one test and $139 for a full panel; at-home kits are $49+.
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.
Collin County reported ~257 chlamydia cases per 100,000 in 2023, below the Texas average.
Most results are ready in about 1–2 days.
In Texas, people under 18 can consent to confidential STD testing and treatment on their own.
A kit ships to your address; you collect a urine, swab, or finger-stick sample, mail it to the lab, and get results online in a few days.
Chlamydia is checked with a simple urine sample or a swab; lab results usually come back in a day or two.
Usually urine or a swab for chlamydia/gonorrhea, and blood for HIV, syphilis, and hepatitis.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.