Chlamydia is reported in Bureau County about 65% lower than the US average. If you've had a recent risk or simply test on a regular schedule in Princeton, Illinois, weigh the pros and cons of clinics that may bill insurance or offer sliding-scale fees against private labs that typically let you pay a flat self-pay price. Find more options below.
Available testing centers
9 testing options are listed for Princeton, IL. The nearest, Osf Healthcare System, is about 1.0 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 about 1 mile from Princeton. 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 14 miles from Princeton. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.
Tests offered
Local NP in Lasalle tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis A, B, and C on a sliding-scale fee with insurance and Medicaid accepted. Appointments are required, and bacterial STIs can be treated the same visit; PrEP is available on-site.
Local NP writes PrEP prescriptions and handles the follow-up lab monitoring, HIV and kidney function testing, that keeping someone on Tenofovir-based PrEP safely requires. PEP is also prescribed on-site, meaning the full prevention pharmacology sits with the same clinical staff managing the testing.
Plenty of testing sites can flag a hepatitis C antibody, fewer can actually treat it. Local NP goes the full distance: reactive results move into on-site treatment, so patients aren't left managing a chronic infection while waiting for a separate provider to get involved.
Someone without a regular primary care provider, or paying out of pocket and wanting one thorough visit rather than multiple appointments, benefits from Local NP's broader scope: herpes and hepatitis A, B, and C sit alongside the standard four, so a single appointment covers exposures that a trimmed-down panel would miss entirely.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Feb 2026 · Source: CDC NPIN
Community Health Partnerships of a community health center in Mendota, tests for HIV, syphilis, gonorrhea, chlamydia, hepatitis B, and hepatitis C on a sliding-scale fee accepted by Medicaid and Medicare, with appointments required and STI treatment on-site. Care is available in Spanish.
Community Health Partnerships of Illinois operates STI and hepatitis care directly in Spanish, not through a supplemental service, but as a primary clinical language at the Mendota site. That means history-taking, diagnosis, and treatment discussion all happen in Spanish without a handoff.
The clinic tests for both hepatitis B and hepatitis C in addition to HIV, syphilis, gonorrhea, and chlamydia. Because both hepatitis strains are included in the same visit, a single appointment can resolve questions across infections that otherwise require separate care episodes.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Jan 2026 · Source: CDC NPIN + HRSA
A safety-net rural health clinic about 23 miles from Princeton. 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 about 1 mile 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 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 Bureau 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.
530 Park Avenue East, Princeton, IL 61356
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, 52 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 12 offer telehealth.
Timothy Pratt, MD
Family medicine · 535 Park Avenue East, Princeton
Leonardo Lopez, MD
Family medicine · 530 Park Avenue East, Princeton
Travis Swink, DO
Family medicine · 530 Park Avenue East, Princeton
Christian Schwartz, DO
Urology · 530 Park Avenue East, Princeton
Thaw Tun, MD
Internal medicine · 1302 North Greenwood Street, Spring Valley
Adam Kress
Family medicine · 415 East 2nd Street, Spring Valley
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, 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.
Princeton Pharmacy
0.1 miNelson Drug Store
0.2 miFawcett's Pharmacy
0.7 mi
1.2 mi Ladd Pharmacy
13 miShowing the 5 closest pharmacies to Princeton, 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 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 $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 Bureau County, the county that includes Princeton, compare with Illinois and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~25% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#85 of 102 Illinois counties for chlamydia, a higher rate than 17% of the state
| Infection | Bureau County | Illinois | United States |
|---|---|---|---|
| Chlamydia | 171.1 56 cases ▼ 69% | 557.7 | 492.2 |
| Gonorrhea | 30.6 10 cases ▼ 85% | 202.3 | 179.5 |
| Syphilis (P&S) | — no data | 11.6 | 15.8 |
| Syphilis (early) | — no data | 10.9 | 16 |
| Syphilis (late/unknown) | 3.1 1 cases ▼ 88% | 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 Bureau County, chlamydia has fallen from 294.8 to 171.1 per 100,000 (42%), and gonorrhea has fallen from 66.2 to 30.6 per 100,000 (54%).
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 Bureau County.
Local HIV snapshot
Bureau County HIV care continuum (2023)
Bureau County recorded 0 new HIV diagnoses per 100,000 (2023), against 14.7 statewide and 13.7 nationally. Among Bureau County residents living with HIV, 87% are in care · 82.6% 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 Bureau 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 Westside blocks, where a mix of longtime homeowners and a smaller share of renters share streets within easy reach of North Main Street, set the tone for how daily life runs here: most working-age adults are in the labor force, schedules are built around steady employment, and a Tuesday afternoon appointment is rarely just a quick errand. That workforce rhythm matters when it comes to STI screening. Young adults in their late teens and twenties make up a meaningful slice of Princeton's population, and they tend to cycle through new relationships, new jobs, and shifting insurance situations in ways that make routine testing easy to postpone.
With the vast majority of households owner-occupied and typical rents sitting at a level that keeps budgets tight for those who do rent, cost can be a real consideration in choosing where and when to go. The options listed on this page include a range of fee structures, which means a resident near Darius Miller Park has roughly the same realistic choices as someone commuting along US 34 into or out of town. Whether someone's schedule opens mid-morning near the City Hall Park end of South Main Street or only after a shift along IL 26, at least a few of those options realistically fit without a major detour.
Getting there
At 7.02/20 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 61356 snapshot
ZIP-level Census figures for the wider 61356 area around Princeton: a single ZIP can span several communities, so they describe the area, not Princeton alone.
Princeton sits in Bureau County, ZIP 61356. 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 Bureau 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 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 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.
The closest is Osf Healthcare System (1 mi); 5 options are within 30 miles.
Public clinics are free; private labs ~$24–$139, at-home kits $49+.
Yes, community and public clinics test the uninsured, with sliding-scale fees.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 171 cases per 100,000 residents (2023), below the Illinois average.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
In Illinois, people under 18 can consent to confidential STD testing and treatment on their own.
Yes, most chlamydia infections cause no symptoms, so screening is the only reliable way to catch it.
You self-collect a sample at home, mail it in, and view results online, no clinic visit needed.
A urine sample or a swab (genital, throat, or rectal) detects gonorrhea, often tested alongside chlamydia.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.