In Buffalo County, there are about 1009 syphilis cases per 100,000 residents, well above the US average. If you're in Fort Thompson, South Dakota and want a syphilis test before starting a new relationship or as part of ongoing care, compare local clinics which may bill insurance or offer sliding-scale fees against private labs that let you pay a flat self-pay price. We list your options below.
Available testing centers
5 testing options are listed for Fort Thompson, SD. The nearest, Horizon Health - Fort Thompson, is about 1.8 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.
Horizon Health - Fort Thompson earns its federally qualified designation by charging fees on a sliding scale tied to income, no one is turned away for inability to pay. Walk-ins are welcome for STI screening covering syphilis, gonorrhea, and chlamydia.
Tests offered
Fees & payment
Horizon Health Care in Fort Thompson tests for gonorrhea, chlamydia, syphilis, HIV, herpes, and hepatitis A, B, and C on a sliding-scale fee: Medicaid, Medicare, and private insurance all accepted. Bacterial infections are treated same visit; an appointment is required.
Horizon Health Care maintains interpretation services as a staffed clinical resource, meaning non-English communication runs through a person present in the care process. Not patched in after the fact. That operational reality keeps symptom descriptions, treatment instructions, and follow-up plans accurate from the first question to the last.
Horizon Health Care tests for herpes and all three hepatitis strains (A, B, and C) alongside the core bacterial and HIV screen. For anyone with overlapping exposure concerns, that means fewer separate appointments and a clearer picture from a single visit.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Feb 2026 · Source: CDC NPIN
Indian Health Service in Fort Thompson tests for gonorrhea, chlamydia, syphilis, herpes, hepatitis C, and HIV on a sliding-scale basis, with all services provided at no fee, and treats bacterial STIs the same visit; an appointment is required.
Leaving herpes or hepatitis C undetected means carrying an infection that quietly compounds, and covering the cost of a second appointment elsewhere to close the gap. Indian Health Service in Fort Thompson tests for both on the same visit as the core bacterial panel, so nothing gets deferred to another provider.
STI clinics typically address the infection and nothing else, leaving patients to navigate separate systems for substance-use treatment on their own. Indian Health Service in Fort Thompson integrates both, so those two needs can be addressed together rather than in separate facilities on separate timelines.
When cost creates hesitation, an untreated STI or delayed hepatitis C diagnosis is the real outcome. Not a temporary inconvenience. Indian Health Service in Fort Thompson charges nothing for any of its services, which means testing, treatment, and vaccines are all available without a payment calculation standing in the way.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Apr 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 about 2 miles away; if you'd rather skip the trip, an at-home kit ships to Fort Thompson, 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 for simplicity & support
$89 & 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 Buffalo 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.
1323 Bia Rt 4, Fort Thompson, SD 57339
CMS-certified lab Accredited · COLA
Showing the nearest 1 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Fort Thompson. 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.
Nearby pharmacies
No pharmacy near Fort Thompson, SD 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.
Lewis Family Drug
17 miVilas Pharmacy
32 miPresho Community Pharmacy
34 miMiller Rexall Drug
38 miShowing the 4 closest pharmacies to Fort Thompson, SD.
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 Fort Thompson, 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.
From $0 insured
Telehealth PrEP & DoxyPEP with at-home testing and ongoing monitoring
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
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 Buffalo County, the county that includes Fort Thompson, compare with South Dakota and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~32% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#4 of 66 South Dakota counties for chlamydia, a higher rate than 94% of the state
| Infection | Buffalo County | South Dakota | United States |
|---|---|---|---|
| Chlamydia | 2388.5 45 cases ▲ 349% | 531.6 | 492.2 |
| Gonorrhea | 2070.1 39 cases ▲ 717% | 253.3 | 179.5 |
| Syphilis (P&S) | 1008.5 19 cases ▲ 1274% | 73.4 | 15.8 |
| Syphilis (early) | 902.3 17 cases ▲ 1075% | 76.8 | 16 |
| Syphilis (late/unknown) | 1857.7 35 cases ▲ 2448% | 72.9 | 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 Buffalo County, chlamydia has risen from 872.7 to 2388.5 per 100,000 (174%), gonorrhea has risen from 872.7 to 2070.1 per 100,000 (137%), and P&S syphilis has risen from 208 to 1008.5 per 100,000 (385%).
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 Buffalo County.
Local HIV snapshot
Buffalo County HIV care continuum (2022)
Buffalo County recorded 0 new HIV diagnoses per 100,000 (2022), against 6.8 statewide and 13.7 nationally. Early, routine testing is what moves these numbers: it is the entry point to PrEP, treatment, and viral suppression.
Sources: AIDSVu (Emory/Gilead) · 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 Buffalo County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
SD Highway 34 cuts through a community where large households and low rents shape daily life in ways that matter for health access. With average households closer to four people and rental costs far below national norms, Fort Thompson's housing reality reflects tight budgets and shared space. Not the kind of financial cushion that makes a clinic visit feel routine. Nearly three in four residents rent rather than own, and with only a tiny fraction of households clearing six figures, out-of-pocket costs for anything medical can be a genuine obstacle, even when fees are modest.
That pressure lands hardest on younger adults (people in their late teens and twenties forming relationships, building independence) who make up a substantial share of this community. High unemployment means schedules aren't always the barrier people assume; rather, it's transportation. Near Fort Thompson Mounds, that drive is simply part of the calculation. Knowing which listed clinics offer sliding-scale fees or same-day appointments before leaving home turns a long trip into a purposeful one, not a wasted tank of gas.
Getting there
At 5.39/20 on the EPA walkability index, day-to-day errands in Fort Thompson 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 57339 snapshot
ZIP-level Census figures for the wider 57339 area around Fort Thompson: a single ZIP can span several communities, so they describe the area, not Fort Thompson alone.
Fort Thompson sits in Buffalo County, ZIP 57339. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Fort Thompson? 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 Buffalo County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under South Dakota 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 Fort Thompson-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 Fort Thompson 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 South Dakota 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 South Dakota, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
Expedited Partner Therapy (EPT) is potentially allowable in South Dakota: it is not expressly authorized, but not prohibited either. Ask your provider whether they will prescribe treatment for a partner without a separate visit.
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 South DakotaSource: 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 4 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.
Buffalo County reported ~2,389 chlamydia cases per 100,000 in 2023, above the South Dakota average.
In South Dakota, people under 18 can consent to confidential STD testing and treatment on their own.
At-home kits mail to 57339: self-collect, send to the lab, results in ~2–5 days.
Teen and campus health clinics and public health departments offer youth-friendly, low-cost testing.
No, most STIs have no visible signs, so the only way to know is to test.
Public and community clinics test everyone; several provide LGBTQ-affirming services.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.