Randolph County reports about 17 syphilis cases per 100,000 residents, near the US average. If you've had a recent risk or simply test on a regular schedule, Chester, Illinois, offers several STI testing options. Clinics may bill insurance or offer sliding-scale fees, while many private labs let you pay a flat self-pay price. Below is a list of local options.
Available testing centers
9 testing options are listed for Chester, IL. The nearest, Memorial Hospital, 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.
A safety-net rural health clinic in Chester. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
A public safety-net rural health clinic about 10 miles from Chester. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
A safety-net rural health clinic about 13 miles from Chester. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Sainte Genevieve County Health Department tests for HIV, syphilis, gonorrhea, chlamydia, and hepatitis C. Every test free, with same-visit treatment for bacterial infections. HPV, hepatitis A, and hepatitis B vaccines are available, and appointments are required.
For anyone paying cash, without a regular provider, or stretching a tight budget, the full scope here (testing, treatment, vaccines) runs at no charge to every patient regardless of income or insurance status. That's not a reduced-fee tier; it's the standard.
Plenty of STI clinics stop their bloodwork at HIV and syphilis, leaving hepatitis C as something to chase down elsewhere. Sainte Genevieve County Health Department includes a rapid hepatitis C test in its panel, answered and documented in the same visit.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Oct 2025 · Source: CDC NPIN
A public safety-net rural health clinic about 13 miles from Chester. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
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 Chester, 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 Randolph 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.
818 East Broadway - PO Box 297, Sparta, IL 62286
CMS-certified lab Accredited · College of American Pathologists
325 Spring Street, Red Bud, IL 62278
CMS-certified lab Accredited · Joint Commission
Showing the nearest 2 CLIA-certified labs.
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Chester. 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, 56 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Chester. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 5 offer telehealth.
Mark Preuss, MD
Family medicine · 9 Westwood Drive, Steeleville
Sarah Bohnert, MD
Family medicine · 753 Pointe Basse Drive, Ste Genevieve
Zaki Chowdhury, MD
Internal medicine · 120 Plaza Dr Plaza Medical Ctr, Ste Genevieve
Hannah Kertz, MD
OB-GYN · 800 Sainte Genevieve Drive, Ste Genevieve
Dan Frissell, MD
Family medicine · 800 Genevieve Drive, Sainte Genevieve
Erika Leung, MD
Internal medicine · 930 Park Drive, Ste Genevieve
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 Chester, 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.
1.1 mi Victors Medicenter Pharmacy
1.3 miTony's Medicenter Pharmacy
11 mi
13 mi Roziers Country Mart
13 miShowing the 5 closest pharmacies to Chester, 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 Chester, 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 Randolph County, the county that includes Chester, compare with Illinois 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.
#38 of 102 Illinois counties for chlamydia, a higher rate than 63% of the state
| Infection | Randolph County | Illinois | United States |
|---|---|---|---|
| Chlamydia | 298.5 89 cases ▼ 46% | 557.7 | 492.2 |
| Gonorrhea | 107.3 32 cases ▼ 47% | 202.3 | 179.5 |
| Syphilis (P&S) | 16.8 5 cases ▲ 45% | 11.6 | 15.8 |
| Syphilis (early) | 10.1 3 cases ▼ 7% | 10.9 | 16 |
| Syphilis (late/unknown) | 43.6 13 cases ▲ 68% | 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 Randolph County, chlamydia has risen from 291.7 to 298.5 per 100,000 (2%), gonorrhea has fallen from 149.2 to 107.3 per 100,000 (28%), and P&S syphilis has risen from 6.6 to 16.8 per 100,000 (155%).
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 Randolph County.
Local HIV snapshot
Randolph County HIV care continuum (2021)
Randolph County recorded 0 new HIV diagnoses per 100,000 (2021), against 14.7 statewide and 13.7 nationally. Among Randolph County residents living with HIV, 71% are in care · 61.3% 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 Randolph County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
Chester draws young adults who return to family land, work the river trades, or settle near the bluffs where housing costs stay low enough to actually own something by thirty. That mix, longtime homeowners alongside single adults and people outside traditional employment, means the town holds everyone from teenagers to retirees, many of whom value the quiet that comes with staying put. STI testing in and around Chester listed on this page reflects that reality: clinics designed for people who know their neighbors and want discretion without fanfare, where a visit happens on your terms and your health record stays yours alone. Testing here isn't framed around crisis or shame. Routine screening matters most during the years when sexual health shifts fastest, and Chester's young adults, whether they've stayed or circled back, deserve the same straightforward access their counterparts in larger towns take for granted.
The providers available locally understand that confidentiality isn't theater; it's how people actually show up. A few miles can feel like nothing in a place this size, and distance to care shouldn't determine whether someone gets tested. Results and records stay confidential by law, not by luck. If you're exploring options in Chester, start with what's listed here: each clinic's hours, testing types, and walk-in policies are there for you to review without pressure.
Getting there
At 6.44/20 on the EPA walkability index, day-to-day errands in Chester 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 62233 snapshot
ZIP-level Census figures for the wider 62233 area around Chester: a single ZIP can span several communities, so they describe the area, not Chester alone.
Chester sits in Randolph County, ZIP 62233. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Chester? 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 Randolph 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 Chester-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 Chester 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.
There are 5 options within a 30-mile drive.
Usually yes, it can be billed to insurance, or paid out of pocket at a flat rate.
Public clinics serve people without insurance.
A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.
Randolph County reported ~299 chlamydia cases per 100,000 in 2023, below the Illinois average.
Most results are ready in about 1–2 days.
In Illinois, people under 18 can consent to confidential STD testing and treatment on their own.
Reputable kits use the same lab methods as clinics; any positive should be confirmed and treated by a provider.
Chlamydia is checked with a simple urine sample or a swab; lab results usually come back in a day or two.
It can; oral HSV-1 transmits to the genitals during oral sex.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.