Gonorrhea rates in Natrona County run about 58% lower than the US average. If you've had a recent risk or just test on a schedule, you have several options in Evansville, Wyoming. Some clinics accept walk-ins for same-day testing, while labs and at-home kits let you plan around your schedule. See your options below.
Available testing centers
7 testing options are listed for Evansville, WY. The nearest, Rocky Mountain Family Medicine, 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.
Rocky Mountain Family Medicine in Casper covers gonorrhea, chlamydia, syphilis, and HIV testing within a family practice, treating bacterial infections at the same visit. Fees apply and insurance is accepted, with appointments required.
Languages
English
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Nov 2025 · Source: CDC NPIN
Community Health Center of Central Wyoming in Casper tests for gonorrhea, chlamydia, HIV, and TB on a sliding-scale fee accepted by Medicaid, Medicare, and most insurers. Appointments are required, and bacterial STIs are treated the same visit. Care is available in Spanish.
For someone whose primary language is Spanish, the value isn't just reaching a clinic: it's being able to describe symptoms accurately, understand a diagnosis, and ask follow-up questions without losing anything in translation. Community Health Center of Central Wyoming delivers STI testing, counseling, and treatment entirely in Spanish, so nothing critical gets simplified or skipped.
For people navigating substance use alongside sexual health concerns, situations where stigma often keeps both issues siloed, Community Health Center of Central Wyoming keeps both under the same clinical roof. Substance-use treatment and STI care share the same appointment structure, which matters for anyone without a regular provider managing multiple needs at once.
Languages
Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Oct 2025 · Source: CDC NPIN + HRSA
University of Wyoming Family Medicine Residency Casper, a federally qualified health center in Casper, welcomes walk-in patients for STI screening without an appointment. A single visit can cover syphilis, gonorrhea, and chlamydia testing, with fees set on a sliding scale tied to household income.
Tests offered
Fees & payment
A free or low-cost STD-testing location about 3 miles from Evansville, run as a Federally Qualified Health Center with sliding-scale fees.
Languages
English, Interpretation Services Available for Non-English Languages
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Nov 2025 · Source: CDC NPIN + HRSA
Rocky Mountain Infectious Diseases in Casper runs by appointment, so every visit is structured around your actual care needs: HIV, syphilis, gonorrhea, chlamydia, hepatitis B and C, and TB testing, with sliding-scale fees, same-visit treatment for bacterial infections, and services delivered in Spanish.
Many infectious-disease clinics route Spanish-speaking patients through an interpreter line that sits outside the clinical conversation. At Rocky Mountain Infectious Diseases, care (counseling, treatment decisions, follow-up) is delivered directly in Spanish, keeping nothing at arm's length.
Rocky Mountain Infectious Diseases prescribes both PrEP and PEP for HIV prevention, which means ongoing risk reduction is managed by the same clinicians who handle your testing and infectious-disease care. No separate prescription source to coordinate.
A positive hepatitis C test without an on-site treatment pathway means a second appointment, a new provider relationship, and weeks of potential delay during which the virus continues advancing. Rocky Mountain Infectious Diseases closes that gap entirely, diagnosis and full treatment are managed within the same practice in Casper.
Languages
English, Spanish
Tests offered
Serves
Care services
Prevention services
Fees & payment
Listing verified Sep 2025 · 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 Evansville, 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 Natrona 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.
111 South Jefferson Street, Casper, WY 82601
CMS-certified lab Accredited · College of American Pathologists
1233 East Second Street, Casper, WY 82601
CMS-certified lab
111 South Jefferson, Casper, WY 82601
CMS-certified lab Accredited · Joint Commission
Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Evansville. 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, 84 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Evansville. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 23 offer telehealth.
H Karl Radke, MD
Family medicine · 5000 Blackmore Road, Casper
Mark Campbell, MD
OB-GYN · 6350 East 2nd Street, Casper
Joseph Coppola, DO Telehealth
Internal medicine · 6500 East 2nd Street, Casper
Marjorie Wells, MD Telehealth
Family medicine · 3955 East 12th Street, Casper
Laura Smothers, MD
OB-GYN · 1540 Centennial Court, Casper
Caroline Kirsch, DO
Family medicine · 1522 East A Street, Casper
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 Evansville, WY 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.
Sam's Club Pharmacy 10
1.5 mi
1.6 mi Ridleys Family Markets
1.7 mi
2.4 mi Osco Pharmacy
5.0 miShowing the 5 closest pharmacies to Evansville, WY.
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 Evansville, 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
$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
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 Natrona County, the county that includes Evansville, compare with Wyoming and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~37% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.
#3 of 23 Wyoming counties for chlamydia, among the very highest in the state
| Infection | Natrona County | Wyoming | United States |
|---|---|---|---|
| Chlamydia | 452.8 362 cases ▲ 45% | 313.2 | 492.2 |
| Gonorrhea | 75.1 60 cases ▲ 78% | 42.3 | 179.5 |
| Syphilis (P&S) | 2.5 2 cases ▲ 14% | 2.2 | 15.8 |
| Syphilis (early) | 7.5 6 cases ▲ 295% | 1.9 | 16 |
| Syphilis (late/unknown) | 8.8 7 cases ▲ 73% | 5.1 | 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 Natrona County, chlamydia has fallen from 559.1 to 452.8 per 100,000 (19%), gonorrhea has fallen from 97.6 to 75.1 per 100,000 (23%), and P&S syphilis has fallen from 7.5 to 2.5 per 100,000 (67%).
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 Natrona County.
Local HIV snapshot
Natrona County HIV care continuum (2021)
Natrona County recorded 0 new HIV diagnoses per 100,000 (2021), against 4.2 statewide and 13.7 nationally. Among Natrona County residents living with HIV, 87% are in care · 80.4% 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 Natrona County tests for syphilis.
Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).
Local resources & officials
Data & references
Local context
People moving between Evansville and Casper for work often stop at the intersection of Curtis Street and Southeast Wyoming Boulevard, a natural hub where the rhythm of the day shifts. That same practicality applies to sexual health. Young adults here, whether establishing themselves in their first jobs or managing households alongside partners and extended family, need testing that fits into real life without disruption. Clinics and urgent care facilities in and around Evansville listed on this page recognize that confidentiality isn't casual, it's foundational.
What you discuss with a provider stays there. Evansville's character runs toward self-reliance and direct action. When someone decides screening matters, they move on it. Testing happens quietly; results don't circulate through the community or trigger unexpected conversations at home.
The providers serving this area understand the difference between privacy as policy and privacy as something that shapes whether a person actually walks through the door. Routine screening during your twenties and thirties (whether you're partnered, single, or navigating any relationship shape) catches infections early, when treatment is straightforward. That's not a lecture; it's what works. Find the clinic that fits your schedule and your comfort level using the directory below.
Getting there
At 8.83/20 on the EPA walkability index, day-to-day errands in Evansville 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 82636 snapshot
ZIP-level Census figures for the wider 82636 area around Evansville: a single ZIP can span several communities, so they describe the area, not Evansville alone.
Evansville sits in Natrona County, ZIP 82636. Local context that shapes where residents test:
Local landmarks
Major routes
Nearby cities & towns
Just outside Evansville? 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 Natrona County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under Wyoming 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 an Evansville-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 Evansville 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 Wyoming 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 Wyoming, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.
Wyoming 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 WyomingSource: 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.
Possibly, Casper, WY is close; compare it by distance against Rocky Mountain Family Medicine.
Most plans cover STD screening; a clinic or lab can bill insurance, or you can pay a flat self-pay price.
Yes, Educational Health Center of Wyoming (2.9 mi) offers free testing, and public clinics serve the uninsured.
Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.
About 453 cases per 100,000 residents (2023), above the Wyoming average.
In Wyoming, people under 18 can consent to confidential STD testing and treatment on their own.
PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.
Lab results typically come back in 1–2 days.
It depends: a blood draw covers HIV, syphilis, and hepatitis, while urine or a swab covers chlamydia and gonorrhea.
The gap between exposure and when a test can reliably detect the infection; testing inside it can miss a real infection.
Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.