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STD Testing in Johnston, SC: Free, Same-Day & Confidential

Edgefield County reports about 511 chlamydia cases per 100,000 residents, near the US average. If you've had a recent risk or simply test regularly in Johnston, South Carolina, you may want to weigh whether you prefer clinics that may bill insurance or offer sliding-scale fees, or private labs that typically let you pay a flat self-pay price. Find options in the list below.

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  • Clinics, labs & at-home kits compared
  • Free & low-cost options included
  • Backed by CDC, CMS & Census data
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Available testing centers

STD testing near Johnston, SC

6 testing options are listed for Johnston, SC. The nearest, South Carolina Department of Public Health, is about 5.6 miles away. Compare community and public clinics, private labs, and at-home kits below.

How to read these listings

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.

Closest to you 5.6 miles

South Carolina Department of Public Health

No ratings yet

South Carolina Department of Public Health in Edgefield tests for HIV, syphilis, gonorrhea, chlamydia, herpes, and hepatitis C on a sliding scale, with all services currently provided at no fee: appointments required, and bacterial infections treated the same visit.

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No Fee Applies to Every Service Offered

All services at this clinic are provided at no charge, which means the full scope (testing, treatment, vaccines, PrEP, DoxyPEP) is available without any out-of-pocket calculation before or after the visit.

PrEP, PEP, and DoxyPEP Prescribed On-Site

For anyone without a regular prescriber, or paying cash, this clinic holds standing capacity to initiate PrEP, PEP, and DoxyPEP directly, so prevention medications don't require routing through a separate appointment elsewhere.

Herpes and Hepatitis Tested Alongside the Core Four

The clinic tests for herpes and hepatitis C in addition to HIV, syphilis, gonorrhea, and chlamydia, which means a single visit can surface infections that a narrower panel would leave undetected.

Tests & treats Sliding-scale PrEP DoxyPEP
Address
21 Star Road, Edgefield, SC 29824
Booking
Appointment required
Opening hours
  • Monday 8:30 AM – 5:00 PM
  • Tuesday 8:30 AM – 5:00 PM
  • Wednesday 8:30 AM – 5:00 PM
  • Thursday 8:30 AM – 5:00 PM
  • Friday 8:30 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Community health center 8.2 miles

Carolina Health Centers

Where these reviews come from

Review sources

  • Google15
  • EasySTD2
Rated 2.9 out of 5 from 17 reviews

Carolina Health Centers, a community health center in Ridge Spring, extends STI care across gonorrhea, chlamydia, syphilis, rapid and conventional HIV, and hepatitis C: with appointments required, same-visit bacterial treatment, and all services provided at no fee.

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Every Service Carries a Zero Balance

The sliding-scale at Carolina Health Centers bottoms out at zero, not for a specific eligibility tier, but across all services the clinic offers. That structure means the cost question is answered before an appointment is ever scheduled.

Hepatitis C Rapid Testing Added to the Panel

Beyond gonorrhea, chlamydia, syphilis, and HIV, Carolina Health Centers runs a rapid hepatitis C test. Meaning antibody results are available the same visit rather than pending a lab send-out. On-site hepatitis A and B vaccination rounds out that hepatitis coverage.

Tests & treats Sliding-scale
Address
201 Aiken Road, Ridge Spring, SC 29129
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 6:00 PM
  • Tuesday 8:00 AM – 6:00 PM
  • Wednesday 8:00 AM – 6:00 PM
  • Thursday 8:00 AM – 6:00 PM
  • Friday Closed
  • Saturday Closed
  • Sunday Closed
Website
Premium Partner

Labcorp

Most reviewed Results in 1–2 days
Where these reviews come from

Review sources

  • Google133
  • EasySTD5
Rated 3.4 out of 5 from 138 reviews
Address
410 University Parkway, Aiken, SC 29801 17.4 miles away
Opening hours
  • Monday 7:30 AM – 5:00 PM
  • Tuesday 7:30 AM – 5:00 PM
  • Wednesday 7:30 AM – 5:00 PM
  • Thursday 7:30 AM – 5:00 PM
  • Friday 7:30 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner

Quest Diagnostics

Results in 1–2 days
Where these reviews come from

Review sources

  • Google79
  • EasySTD5
Rated 3.6 out of 5 from 84 reviews
Address
4469 Washington Road, Evans, GA 30809 27.7 miles away
Opening hours
  • Monday 7:00 AM – 4:00 PM
  • Tuesday 7:00 AM – 4:00 PM
  • Wednesday 7:00 AM – 4:00 PM
  • Thursday 7:00 AM – 4:00 PM
  • Friday 7:00 AM – 4:00 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner

Clinical Pathology Labs

Results in 1–2 days
No ratings yet
Address
2824 Hillcreek Drive, Augusta, GA 30909 29.5 miles away
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Premium Partner

Labcorp at Walgreens

Highest rated Results in 1–2 days
Where these reviews come from

Review sources

  • Google26
  • EasySTD3
Rated 4.4 out of 5 from 29 reviews
Address
4470 Columbia Road, Augusta, GA 30907 29.6 miles away
Opening hours
  • Monday 8:00 AM – 5:00 PM
  • Tuesday 8:00 AM – 5:00 PM
  • Wednesday 8:00 AM – 5:00 PM
  • Thursday 8:00 AM – 5:00 PM
  • Friday 8:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
  • Chlamydia
  • Gonorrhea
  • Syphilis
  • Herpes
  • Hepatitis A
  • Hepatitis B
  • Hepatitis C
  • Rapid HIV
  • Conventional HIV
See tests & prices

Today's offer: $10 off any test panel, applied automatically at checkout.

Free tool · not a clinic

When can I test? Exposure-window calculator

Testing too soon can miss an infection. Enter the date of possible exposure to see the earliest a test can reliably detect each STI.

Detection windows for every 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.

Find your match in 10 seconds

What matters most to you?

What will it cost? Estimate your STD test

Typical out-of-pocket ranges by option, actual cost depends on which tests you need.

  • Public / community clinic

    Free HIV testing is common

    $0–$25

  • Private lab (self-pay)

    Never billed to insurance

    $24–$200

  • At-home kit

    Mailed to your door, private

    From $49

  • Doctor / urgent care

    Often $0 preventive with insurance

    $0–$50 copay

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Every other option

More ways to get tested in Johnston, SC

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

At-home STD testing in Johnston, SC

The nearest testing center is about 6 miles away; if you'd rather skip the trip, an at-home kit ships to Johnston, 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.

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

Other CLIA-certified labs near Johnston, SC

Beyond the public testing sites above, these federally certified (CLIA) labs serve Edgefield 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.

  • Edgefield County Healthcare

    300 Ridge Medical Plaza, Edgefield, SC 29824

    CMS-certified lab Accredited · COLA

    • STD testing
    Call Directions

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Johnston. 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

Clinicians near Johnston, SC who may help arrange STD testing

Beyond dedicated clinics, 514 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Johnston. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 109 offer telehealth.

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

Pharmacies near Johnston, SC

No pharmacy near Johnston, SC 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.

  • Maxwell and Halford Drug

    0.2 mi
    Rx pickupCondoms / EC
    Directions
  • CVS Pharmacy 5.5 mi
    Rx pickupOTC HIV self-testAt-home STI kitsMinuteClinic STI careHPV & Hep B vaccinesCondoms / EC
    Directions

  • Edgefield Community Pharmacy

    8.1 mi
    Rx pickupCondoms / EC
    Directions

  • Banks Drug

    8.3 mi
    Rx pickupCondoms / EC
    Directions

Showing the 4 closest pharmacies to Johnston, SC.

Directory records identify nearby pharmacies. Service, stock, price, and hours information is shown only when supported by current location-specific evidence.

Prevention & treatment

PrEP, prevention & online treatment

Testing is one step. For residents of Johnston, 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.

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

STDs & HIV in Edgefield County: the local picture

How reported STI rates in Edgefield County, the county that includes Johnston, compare with South Carolina and U.S. averages, based on the most recent 2023 surveillance data. An estimated ~19% of residents are aged 15–34 (ACS), the age group with the highest reported chlamydia and gonorrhea rates nationally.

#30 of 46 South Carolina counties for chlamydia, a higher rate than 35% of the state

Reported STD rates per 100,000, Edgefield County vs South Carolina vs U.S.

Edgefield County South Carolina U.S. ▲▼ = Edgefield County vs the state average
Infection Edgefield County South Carolina United States
Chlamydia
510.7 141 cases ▼ 17%
612.1 492.2
Gonorrhea
148.5 41 cases ▼ 33%
222.4 179.5
Syphilis (P&S)
29 8 cases ▲ 68%
17.3 15.8
Syphilis (early) — no data 18.8 16
Syphilis (late/unknown)
21.7 6 cases ▲ 85%
11.7 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.

Reported STD rates in Edgefield County over time (per 100,000)

Chlamydia ▲ 0% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 275 550 2020202120222023

Between 2020 and 2023 in Edgefield County, chlamydia has risen from 487.2 to 510.7 per 100,000 (5%), gonorrhea has fallen from 187.1 to 148.5 per 100,000 (21%), and P&S syphilis has risen from 7.8 to 29 per 100,000 (272%).

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

What shapes testing access in and around Johnston, SC

Adults uninsured
17.2%
No routine checkup
17.3%
No transportation
15.1%
Binge drinking
12.1%
Frequent mental distress
18.7%
Depression
21%
Below poverty line
24.4%
Primary-care ratio
2,906 : 1
Edgefield County
  • Primary-care shortage score 12 / 26
  • Medically Underserved Area · IMU 39.6
  • Social Vulnerability Index · 85th percentile nationally

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 Edgefield County.

Local HIV snapshot

HIV in Edgefield County (2023)

Federal priority area: South Carolina is one of the U.S. jurisdictions prioritized under the Ending the HIV Epidemic initiative: targeted federal funding to expand local HIV testing, PrEP, and prevention.

People living with HIV
502 / 100k
PrEP users / 100k
102

Edgefield County HIV care continuum (2022)

Edgefield County recorded 33.5 new HIV diagnoses per 100,000 (2022), against 18.3 statewide and 13.7 nationally. Among Edgefield County residents living with HIV, 59% are in care · 32% 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.

Pregnant or planning to be?

Congenital syphilis is the fastest-rising STI: what to test, and when

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 Edgefield County tests for syphilis.

Source: CDC NCHHSTP AtlasPlus, 2023 (county-level congenital syphilis is not published).

Reviewed & Fact-Checked · Updated

Reviewed by EasySTD Editorial Team (opens in a new tab)

Compiled and checked by EasySTD's editorial team against CDC and public-health sources. This is educational information, not a substitute for advice from a licensed clinician. Our editorial guidelines → (opens in a new tab)

18 Sources

Local resources & officials

Data & references

Local context

About Johnston, SC

Lee Street cuts through the center of Johnston with the unhurried feel of a town where a lot of residents have put down roots: more than half own their homes, and household sizes run larger than the national average, suggesting multigenerational or family-centered living. That distance calculus matters most for young adults still forming relationships, the group that sees the highest rates of new STI diagnoses nationally. In a town where labor-force participation is notably lower than average and roughly four in ten households rent rather than own, schedules and budgets don't always bend toward a weekday clinic trip.

The household income picture skews modest, with very few residents in the high-earning bracket, which makes the fee structures and sliding-scale options listed here worth reading carefully before choosing where to go. For the large share of renters paying around $678 a month, an unexpected out-of-pocket fee can genuinely change whether a visit happens. Uninsured residents in particular should cross-check the cost column on each clinic card, some of the listed options charge on a sliding scale tied directly to income, which at Johnston's typical rent level can mean a visit costs far less than the posted rate.

Getting there

How residents reach STD testing in Johnston, SC

Walkability 5 / 20 · Least walkable

At 5/20 on the EPA walkability index, day-to-day errands in Johnston 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.

Map of 6 STD & STI testing locations in Johnston, South Carolina, EasySTD

ZIP 29832 snapshot

Residents
5,375
Median age
42.8
Median income
$43,125

ZIP-level Census figures for the wider 29832 area around Johnston: a single ZIP can span several communities, so they describe the area, not Johnston alone.

Johnston sits in Edgefield County, ZIP 29832. Local context that shapes where residents test:

Major routes

  • SC 121 (Lee Street)

Reference

STD testing in Johnston, SC: screening, costs & privacy

Everything to know before you test in Edgefield County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under South Carolina law. If you have symptoms right now, our confidential symptom checker maps them to the tests worth considering.

Who should test, and when

CDC screening schedule + each infection's detection window

Who should get tested, and how often

Based on current CDC screening recommendations.

GroupTestsHow 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

When to test: STD detection windows

Testing too early can return a false negative, confirm timing with a Johnston-area provider.

InfectionEarliest reliable testSample
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
Browse all STD & STI guides

What each STD test costs

Medicare reference prices per lab test, a benchmark before you pay out of pocket

These are the federal Medicare reference prices for processing each lab test. Public clinics and the community health centers serving Johnston 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.

TestReference priceCPT / 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.

Confidentiality & consent in South Carolina

Minor consent and partner treatment (EPT) under state law, plus how to test privately

Two things that actually depend on South Carolina 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).

Can a minor consent on their own?

In South Carolina, a minor of any age can consent to confidential STI testing and treatment on their own, no parental permission is required.

Can my partner be treated too? (EPT)

South Carolina 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 South Carolina

Source: Guttmacher Institute, Minors' Access to STI Services; CDC, Legal Status of Expedited Partner Therapy. General information, not legal advice.

Good to Know

STD testing FAQs for Johnston, SC

Answers to the questions people ask most before getting tested.

Is walk-in STD testing available near Johnston, SC?

Yes, several local labs offer same-day walk-in testing; best to call first.

How much does STD testing cost near Johnston, SC?

Free at public clinics. Private labs run about $24 for one test and $139 for a full panel; at-home kits are $49+.

Where can I get tested for free near Johnston, SC?

South Carolina Department of Public Health, about 5.6 mi away, provides free testing.

What's included in a full panel near Johnston, SC?

A full panel typically covers chlamydia, gonorrhea, syphilis, HIV, and hepatitis B and C.

How common is chlamydia in Edgefield County?

Edgefield County reported ~511 chlamydia cases per 100,000 in 2023, below the South Carolina average.

Can I get PrEP near Johnston, SC?

Yes, PrEP, a daily pill that helps prevent HIV in HIV-negative people, is available in the area.

Can someone under 18 get tested in South Carolina without a parent?

In South Carolina, people under 18 can consent to confidential STD testing and treatment on their own.

How long do results take near Johnston, SC?

Most results are ready in about 1–2 days.

Is there an at-home STD test for Johnston, SC?

At-home kits mail to 29832: self-collect, send to the lab, results in ~2–5 days.

Is there a vaccine for HPV?

Yes, the HPV vaccine prevents the types most linked to cancer and genital warts; it's recommended through age 26 (and some adults to 45).

Have a different question? Browse the full STD & STI FAQ library, every question we answer, in one place.