Marion in Williamson County, Illinois, has 25% fewer chlamydia cases than the US average. If you live in Walnut Hill, Illinois, and want STI testing whether you have symptoms or just want peace of mind, consider how quickly you need results. Some clinics take walk-ins for same-day testing, while labs and at-home kits let you plan around your own time. Below are some options.
Available testing centers
7 testing options are listed for Walnut Hill, IL. The nearest, Marion County Health Department, is about 6.3 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.
Marion County Health Department in Centralia runs on scheduled appointments, so arriving with a confirmed slot means the visit covers gonorrhea, chlamydia, syphilis, HIV, hepatitis A, B, and C, and TB. Bacterial infections treated the same day, fees on a sliding scale, insurance accepted.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Apr 2026 · Source: CDC NPIN
A safety-net rural health clinic about 11 miles from Walnut Hill. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Southern Illinois Healthcare Foundation in Salem requires an appointment, so call ahead, but that single visit covers gonorrhea, chlamydia, syphilis, and HIV on a sliding-scale fee open to everyone, with same-visit treatment for bacterial infections and Spanish-language care available.
Plenty of STI clinics run four tests and send patients elsewhere for anything more specific. Southern Illinois Healthcare Foundation tests for herpes, hepatitis A, hepatitis B, and hepatitis C alongside the standard bacterial and HIV screens. Meaning one appointment can account for infections that often go undetected simply because they weren't on the menu.
Many clinics manage Spanish-speaking patients through workarounds that keep the actual provider conversation at arm's length. At Southern Illinois Healthcare Foundation, Spanish is available as a direct language of care, so the conversation about symptoms, history, and next steps happens without anything lost between patient and clinician.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified May 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 6 miles away; if you'd rather skip the trip, an at-home kit ships to Walnut Hill, 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 value: single tests
$49 & 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 Marion 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.
1045 Martin Luther King Drive, Centralia, IL 62801
CMS-certified lab
100 Main Street, Salem, IL 62881
CMS-certified lab
1201 Ricker Drive, Salem, IL 62881
CMS-certified lab
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Walnut Hill. 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, 74 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Walnut Hill. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 18 offer telehealth.
Obinna Ibe, MD
Internal medicine · 400 North Pleasant Avenue, Centralia
James Schutzenhofer, MD
Internal medicine · 1054 M L King Drive, Centralia
Suresh Krishnamoorthy, MD Telehealth
Internal medicine · 1054 Martin Luther King Drive, Centralia
Rajendra Shroff, MD Telehealth
Internal medicine · 1050 M L King Drive, Centralia
Maria Riaz, MD
Internal medicine · 1138 West Mccord Street, Centralia
Esther Schulz, DO
Family medicine · 1441 West Broadway, Centralia
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 Walnut Hill, IL 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.
Bandy's Pharmacy Ii
5.6 miMedicine Shoppe
5.6 miByrd-Watson Drug
5.6 mi
5.8 mi 
6.7 mi 
7.1 mi Showing the 6 closest pharmacies to Walnut Hill, IL.
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 Walnut Hill, 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.
$0 with most insurance
Free online PrEP & DoxyPEP: HIV prevention, home lab kits, no in-person visit
Visit from $39
Online STI treatment & DoxyPEP: same-day prescriptions to your pharmacy
Visit from $0 insured
Telehealth STI treatment and sexual-health care, delivered or to your pharmacy
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 Marion County, the county that includes Walnut Hill, compare with Illinois and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~14% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#28 of 102 Illinois counties for chlamydia, a higher rate than 73% of the state
| Infection | Marion County | Illinois | United States |
|---|---|---|---|
| Chlamydia | 368.1 135 cases ▼ 34% | 557.7 | 492.2 |
| Gonorrhea | 87.3 32 cases ▼ 57% | 202.3 | 179.5 |
| Syphilis (P&S) | — no data | 11.6 | 15.8 |
| Syphilis (early) | 8.2 3 cases ▼ 25% | 10.9 | 16 |
| Syphilis (late/unknown) | 10.9 4 cases ▼ 58% | 26 | 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 Marion County, chlamydia has fallen from 532.7 to 368.1 per 100,000 (31%), gonorrhea has fallen from 251.8 to 87.3 per 100,000 (65%), and P&S syphilis has risen from 5.3 to 5.4 per 100,000 (2%).
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 Marion County.
Local HIV snapshot
Marion County HIV care continuum (2023)
Marion County recorded 0 new HIV diagnoses per 100,000 (2023), against 14.7 statewide and 13.7 nationally. Among Marion County residents living with HIV, 66.7% are in care · 66.7% 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 Marion County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Creeds Hill carries the particular rhythm of a town where most households own their homes and have lived beside the same neighbors for years, large family units, more than half of adults partnered up, roots planted deep. That stability is real, but it coexists with something less comfortable: an unemployment rate that leaves a significant share of working-age residents outside regular income, which shapes how people budget time and money, including for healthcare they might otherwise delay. Those economic pressures land hardest on younger adults, people in their late teens and twenties building relationships and navigating healthcare largely on their own for the first time.
The options listed on this page span a range of hours and fee structures specifically to lower that threshold, so distance doesn't become the deciding factor. Marion County's STI picture makes routine screening genuinely useful, not just theoretical. If Raccoon Lake Park is your weekend landmark, knowing which listed option nearest to you accepts walk-ins, and what to bring, is the single most practical thing you can do before the week starts.
Getting there
At 4.43/20 on the EPA walkability index, day-to-day errands in Walnut Hill 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 62893 snapshot
ZIP-level Census figures for the wider 62893 area around Walnut Hill: a single ZIP can span several communities, so they describe the area, not Walnut Hill alone.
Walnut Hill sits in Marion County, ZIP 62893. Local context that shapes where residents test:
Local landmarks
Nearby cities & towns
Just outside Walnut Hill? 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 Marion County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Illinois 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 Walnut Hill-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 Walnut Hill 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 Illinois 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 Illinois, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.
Illinois 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 IllinoisSource: 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.
Marion County reported ~368 chlamydia cases per 100,000 in 2023, below the Illinois average.
In Illinois, people under 18 can consent to confidential STD testing and treatment on their own.
Your results are part of your HIPAA-protected medical record; you can ask any clinic about its own privacy practices.
A positive means treatment is the next step; many STIs are cured with antibiotics, and all are treatable.
Sexually active people, especially under 25 or with new/multiple partners; everyone 13–64 should test for HIV at least once.
A blood draw screens for syphilis, with a confirmatory test if it's reactive.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.