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STD Testing in Lancaster, CA: Free, Same-Day & Confidential

Lancaster, California, tests for STIs including chlamydia. Consider your options in Lancaster whether it's your first STI test or a routine screening. Community and public clinics are often low-cost or free, while private labs tend to offer faster results and more flexible scheduling. See the list below.

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

Available testing centers

STD testing near Lancaster, CA

12 testing options are listed for Lancaster, CA. The nearest, Quest Diagnostics, is about 0.9 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.

Premium Partner
Quest Diagnostics

Quest Diagnostics

Most popular Results in 1–2 days
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Review sources

  • Google196
  • EasySTD5
Rated 3.7 out of 5 from 201 reviews

Address
1629 West Avenue J, Lancaster, CA 93534 0.9 miles away
Opening hours
  • Monday 6:00 AM – 3:00 PM
  • Tuesday 6:00 AM – 3:00 PM
  • Wednesday 6:00 AM – 3:00 PM
  • Thursday 6:00 AM – 3:00 PM
  • Friday 6:00 AM – 3:00 PM
  • Saturday 8:00 AM – 12:00 PM
  • 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
Labcorp

Labcorp

Results in 1–2 days
?

Review sources

  • Google44
  • EasySTD5
Rated 3.6 out of 5 from 49 reviews

Address
43839 15th Street West, Lancaster, CA 93534 1.3 miles away
Opening hours
  • Monday 6:00 AM – 5:00 PM
  • Tuesday 6:00 AM – 5:00 PM
  • Wednesday 6:00 AM – 5:00 PM
  • Thursday 6:00 AM – 5:00 PM
  • Friday 6:00 AM – 5:00 PM
  • Saturday 8:00 AM – 12:00 PM
  • 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.

Community health center 1.0 miles

BACHC Kensington Shelter

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Review sources

  • Google97
  • EasySTD5
Rated 4.1 out of 5 from 102 reviews

BACHC Kensington Shelter, in Lancaster, structures its fees on a sliding scale tied to income, ensuring no one is turned away for inability to pay. Federally qualified, it offers walk-in STI screening for syphilis, gonorrhea, and chlamydia to anyone who comes through the door.

Sliding-scale
Address
45338 32nd Street West, Lancaster, CA 93536
Website
Community health center 1.6 miles

Tarzana Treatment Centers

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Review sources

  • Google46
  • EasySTD5
Rated 3.2 out of 5 from 51 reviews

Tarzana Treatment Centers in Lancaster runs rapid HIV testing alongside gonorrhea, chlamydia, syphilis, hepatitis C, and TB screening, with same-visit treatment for bacterial STIs on a sliding-scale fee open to all, walk-ins welcome, and care delivered in Spanish.

Read full overview

Spanish Is the Working Language Here

Tarzana Treatment Centers carries out clinical conversations, counseling, and medication instruction in Spanish. The language of the visit itself, not a workaround layered on top. For someone navigating PrEP adherence, TB treatment, or an STI diagnosis without a regular English-speaking provider, that fluency shapes what actually gets understood and followed.

PrEP and PEP Prescribed On-Site in Lancaster

Tarzana Treatment Centers prescribes both PrEP and PEP directly, which means a patient who decides to start HIV prevention leaves with a prescription and the counseling to use it correctly. Not a separate appointment at a separate practice.

Substance-Use Treatment and STI Care at One Address

Without substance-use treatment available at the same clinic, a patient often leaves STI care with a referral they never follow up on, and the underlying factor driving risk goes unaddressed. Tarzana Treatment Centers closes that gap by offering substance-abuse treatment alongside STI testing and treatment in Lancaster, so both concerns are handled in the same place.

Tests & treats Sliding-scale PrEP
Address
907 West Lancaster Boulevard, Lancaster, CA 93534
Opening hours
  • Monday 9:00 AM – 5:00 PM
  • Tuesday 9:00 AM – 5:00 PM
  • Wednesday 9:00 AM – 5:00 PM
  • Thursday 9:00 AM – 5:00 PM
  • Friday 9:00 AM – 5:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Community health center 1.7 miles

Wesley Health Centers - Health and Wellness Center 2

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Review sources

  • Google12
  • EasySTD1
Rated 4.1 out of 5 from 13 reviews

A safety-net federally qualified health center about 2 miles from Lancaster. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.

Sliding-scale
Address
45124 10th Street West, Lancaster, CA 93534
Website
Community health center 1.7 miles

Wesley Health Centers- Health and Wellness Center

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Review sources

  • Google151
  • EasySTD5
Rated 2.4 out of 5 from 156 reviews

A public safety-net federally qualified health center about 2 miles from Lancaster. Sliding-scale STD testing and care are typical here, call ahead to confirm the exact panel and pricing.

Sliding-scale
Address
45104 10th Street West, Lancaster, CA 93534
Website
Community health center 1.7 miles

Wesley Health and Wellness

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Review sources

  • Google151
  • EasySTD5
Rated 2.4 out of 5 from 156 reviews

Wesley Health and Wellness in Lancaster welcomes walk-ins for STI screening, no appointment needed. Federally qualified standing means fees follow a sliding scale tied to income, and a single visit can cover syphilis, gonorrhea, and chlamydia testing in one stop.

Sliding-scale
Address
45104 10th Street West, Lancaster, CA 93534
Website
1.7 miles

JWCH Institute

No ratings yet

A public STD-testing option about 2 miles from Lancaster.

Tests & treats Sliding-scale PrEP DoxyPEP
Address
45104 10th Street West, Lancaster, CA 93534
Booking
Appointment required
Opening hours
  • Monday 8:00 AM – 5:00 PM
  • Tuesday 10:00 AM – 7:00 PM
  • Wednesday 10:00 AM – 7:00 PM
  • Thursday 10:00 AM – 7:00 PM
  • Friday 10:00 AM – 7:00 PM
  • Saturday Closed
  • Sunday Closed
Website
Community health center 3.0 miles

Bachc Parking Garage

No ratings yet

Bachc Parking Garage in Lancaster carries federally qualified health center status, meaning its sliding-scale fees adjust to income for anyone: insured, uninsured, or paying cash between providers. Walk-ins are welcome for STI screening covering syphilis, gonorrhea, and chlamydia.

Sliding-scale
Address
Gingham Avenue, Lancaster, CA 93535
Website
Best for free testing 3.3 miles

Los Angeles County Health Services

No ratings yet

Los Angeles County Health Services in Lancaster takes walk-in visits and covers gonorrhea, chlamydia, syphilis, herpes, hepatitis A, B, and C, TB, and HIV testing the same day: same-visit treatment for bacterial STIs, HPV and hepatitis vaccines, and DoxyPEP, all at no fee on a sliding scale.

Read full overview

Every Service Runs at Zero Cost

The sliding-scale floor at Los Angeles County Health Services in Lancaster is zero, every test, every vaccine, every DoxyPEP prescription, every TB screening lands at no charge. That fee structure applies across the full service list, not to a subset of visits.

Spanish-Speaking Staff Across All Services

Spanish-language care at Los Angeles County Health Services in Lancaster is staffed capacity, meaning clinical conversations about DoxyPEP dosing, TB treatment plans, and test counseling happen directly in Spanish. No routing through a secondary system, the clinical staff conducting the visit hold the language.

DoxyPEP Gaps Mean Bacterial STI Exposure Goes Unaddressed

When DoxyPEP isn't available at the clinic issuing a positive result or counseling a high-risk patient, the antibiotic window closes before the prescription materializes. Los Angeles County Health Services in Lancaster prescribes DoxyPEP directly, so the doxycycline course that reduces post-exposure bacterial STI risk leaves with the patient that day.

Tests & treats Sliding-scale DoxyPEP
Address
335 East Avenue, K 6 Building B Lancaster, CA 93535
Opening hours
  • Monday 8:00 AM – 4:30 PM
  • Tuesday 8:00 AM – 4:30 PM
  • Wednesday 8:00 AM – 4:30 PM
  • Thursday 8:00 AM – 4:30 PM
  • Friday 8:00 AM – 4:30 PM
  • Saturday Closed
  • Sunday Closed
Website
Premium Partner
Labcorp

Labcorp

Highest rated Results in 1–2 days
?

Review sources

  • Google30
  • EasySTD5
Rated 4.1 out of 5 from 35 reviews

Address
44725 10th Street West, Lancaster, CA 93534 1.5 miles away
Opening hours
  • Monday 7:30 AM – 3:30 PM
  • Tuesday 7:30 AM – 3:30 PM
  • Wednesday 7:30 AM – 3:30 PM
  • Thursday 7:30 AM – 3:30 PM
  • Friday 7:30 AM – 3:30 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

Quest Diagnostics

Results in 1–2 days
?

Review sources

  • Google68
  • EasySTD5
Rated 3.7 out of 5 from 73 reviews

Address
41230 11th Street West, Palmdale, CA 93551 4.5 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.

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

Every other option

More ways to get tested in Lancaster, CA

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 Lancaster, CA

The nearest testing center is less than a mile away, if you'd rather skip the trip, an at-home kit ships to Lancaster, 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 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

    Quest Diagnostics

    Quest Diagnostics

    $79 & up

    Panel:
    8-infection panel incl. chlamydia, gonorrhea, HIV, syphilis, hepatitis & herpes: single tests too
    Sample:
    Quest Mobile: a phlebotomist collects your sample at home
    Results:
    1–3 days, online: physician-reviewed
    • In-home sample collection
    • Nationwide Quest lab network
    • Physician-reviewed results
    • FSA/HSA eligible
  • Best for simplicity & support

    LetsGetChecked

    LetsGetChecked

    $89 & up

    Panel:
    5–6 common STIs incl. chlamydia, gonorrhea, HIV, syphilis & trichomoniasis
    Sample:
    Finger-prick + urine/swab
    Results:
    2–5 days, online
    • 24/7 nurse support
    • Prescription for positives
    • CLIA-certified labs
    • Free shipping both ways
  • Best range: couples & full panels

    myLAB Box

    myLAB Box

    $79 & up

    Panel:
    Up to 14 infections, incl. HIV, syphilis, chlamydia, gonorrhea, hepatitis & herpes
    Sample:
    Self-collect: swab, urine, finger-prick
    Results:
    2–5 days, online
    • Free phone consult if positive
    • CLIA-certified labs
    • Couples & subscription options
    • Discreet packaging

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 Lancaster, CA

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

  • Antelope Valley Medical Center

    1600 West Avenue J, Lancaster, CA 93534

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • Gastrocare Institute Laboratory

    43944 15th Street West, Suite 304, Lancaster, CA 93534

    CMS-certified lab Accredited · College of American Pathologists

    • Full STD panel
  • High Desert Regional Health Center

    335 East Avenue I, Lancaster, CA 93535

    CMS-certified lab Accredited · Joint Commission

    • Full STD panel
  • AV Dermatology & Surgery Center

    44215 15th Street West Suite 309, Lancaster, CA 93534

    CMS-certified lab

    • STD testing
  • Ravi Shankar MD

    44215 15th St West, Suite 105, Wilsona Gardens, CA 93534

    CMS-certified lab

    • STD testing
  • Antelope Valley Histology

    44920 Valley Central Way Unit 4-107, Lancaster, CA 93536

    CMS-certified lab Accredited · COLA

    • STD testing

Showing 6 of the CLIA-certified labs in Los Angeles County.

Source: CMS CLIA registry (Provider of Services), Q1 2026. Federal public records: active CLIA-certified laboratories near Lancaster. 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 Lancaster, CA who may help arrange STD testing

Beyond dedicated clinics, 330 primary-care, OB-GYN, infectious-disease and other clinicians have a CMS practice record within 30 miles of Lancaster. They may be able to evaluate symptoms or order a confidential STD panel during a regular visit, and 116 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 Lancaster, CA

Compare the pharmacies closest to Lancaster, CA. Contact a location directly to confirm pharmacy-counter hours, services, prices, and product availability before visiting.

  • Walmart Pharmacy 0.1 mi
    Rx pickupAt-home STI kitsHPV & Hep B vaccinesCondoms / EC
  • CVS Pharmacy 0.6 mi
    Rx pickupOTC HIV self-testAt-home STI kitsMinuteClinic STI careHPV & Hep B vaccinesCondoms / EC
  • Walgreens 0.7 mi
    Rx pickupOTC HIV self-testAt-home STI kitsPrEP/PEP fillsHPV & Hep B vaccinesCondoms / EC

Showing the 3 closest pharmacies to Lancaster, CA.

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 Lancaster, 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 Los Angeles County: the local picture

How reported STI rates in Los Angeles County, the county that includes Lancaster, compare with California 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.

#6 of 58 California counties for chlamydia, a higher rate than 90% of the state

Reported STD rates per 100,000, Los Angeles County vs California vs U.S.

Los Angeles County California U.S. = Los Angeles County vs the state average
Infection Los Angeles County California United States
Chlamydia
602.3 58,200 cases ▲ 23%
491.1 492.2
Gonorrhea
291.8 28,195 cases ▲ 53%
190.2 179.5
Syphilis (P&S)
21.6 2,085 cases ▲ 33%
16.3 15.8
Syphilis (early)
33.1 3,198 cases ▲ 73%
19.1 16
Syphilis (late/unknown)
50.2 4,848 cases ▲ 7%
46.7 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 Los Angeles County over time (per 100,000)

Chlamydia ▲ 2% vs 2022
Chlamydia Gonorrhea Syphilis (P&S)
0 325 650 2020202120222023

Between 2020 and 2023 in Los Angeles County, chlamydia has risen from 529.6 to 602.3 per 100,000 (14%), gonorrhea has risen from 259.8 to 291.8 per 100,000 (12%), and P&S syphilis has fallen from 22.6 to 21.6 per 100,000 (4%).

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 Lancaster, CA

Adults uninsured
15.5%
No routine checkup
30%
No transportation
15.1%
Binge drinking
15.4%
Frequent mental distress
20.1%
Depression
21.6%
Below poverty line
15.6%
Primary-care ratio
1,326 : 1
Los Angeles County

Primary-care shortage score 21 / 26

Medically Underserved Area · IMU 47.9

Social Vulnerability Index · 86th 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 Los Angeles County.

Local HIV snapshot

HIV in Los Angeles County (2023)

Federal priority area: Los Angeles County is one of 48 U.S. counties prioritized under the Ending the HIV Epidemic initiative: targeted federal funding to expand local HIV testing, PrEP, and prevention.

People living with HIV
622 / 100k
New diagnoses (2023)
1,627cases countywide
On PrEP (coverage)
30%

Los Angeles County HIV care continuum (2023)

Los Angeles County recorded 19.6 new HIV diagnoses per 100,000 (2023), against 14.9 statewide and 13.7 nationally. Among Los Angeles County residents living with HIV, 91.6% know their status · 72.8% are in care · 65.2% 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 Los Angeles County tests for syphilis.

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

Editorially Reviewed & Fact-Checked · Updated

Reviewed by EasySTD Editorial Team

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 →

18 Sources

Local resources & officials

Data & references

Local context

About Lancaster, CA

Mariposa Park sits in a part of Lancaster where households run large and neighbors share driveways, backyard fences, and, often, a single car. That everyday closeness shapes how people here move through the week, and it shapes how health decisions get made. With roughly half of residents renting at around $1,200 a month, and a labor-force participation rate that leaves a meaningful share of adults outside steady employment, the cost and timing of an appointment can land differently here than in a city where most households clear six figures. Lancaster's high-earner share trails that kind of comfort, which means out-of-pocket fees or an unexpected day off can genuinely tip the scales on whether someone follows through.

That matters most for younger adults in their late teens and twenties, who make up a substantial slice of Lancaster's population and face the steepest STI rates of any age group. For them, an option that fits around irregular hours or a shared vehicle is not a convenience but a real condition of access.

West Avenue J runs the length of the city and connects most of Lancaster's residential clusters to the commercial corridors where several of the options listed on this page sit. If you're near Sgt. Steve Owen Memorial Park, pulling onto West Avenue J toward those listings is the most direct first move.

Getting there

How residents reach STD testing in Lancaster, CA

Walkability 7.41 / 20 · Below average

At 7.41/20 on the EPA walkability index, day-to-day errands in Lancaster 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 12 STD & STI testing locations in Lancaster, California, EasySTD

ZIP 93535 snapshot

Residents
80,478
Median age
31.9
Median income
$65,989

ZIP-level Census figures for the wider 93535 area around Lancaster: a single ZIP can span several communities, so they describe the area, not Lancaster alone.

Lancaster sits in Los Angeles County, ZIP 93535. Local context that shapes where residents test:

Local landmarks

  • Rawley Duntley Park
  • Museum of Art and History
  • Sgt. Steve Owen Memorial Park
  • Mariposa Park
  • Quartz Hill Airport
  • Apollo Park

Major routes

  • Avenue J
  • Antelope Valley Freeway
  • CR N5 (West Avenue J)
  • 30th Street West

Reference

STD testing in Lancaster, CA: screening, costs & privacy

Everything to know before you test in Los Angeles County: the CDC's screening guidelines, each infection's detection window, per-test reference prices, and your privacy rights under California 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.

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

When to test: STD detection windows

Testing too early can return a false negative, confirm timing with a Lancaster-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
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 Lancaster 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.

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

Two things that actually depend on California 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 California, a minor aged 12 or older can consent to confidential STI testing and treatment on their own, no parental permission is required.

Can my partner be treated too? (EPT)

California 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 California

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 Lancaster, CA

Answers to the questions people ask most before getting tested.

Where can I get tested for STDs in Lancaster, CA?

The closest is Quest Diagnostics (0.9 mi); 12 options are within 30 miles.

Does Medicaid cover STD testing?

Medicaid generally covers STD testing, and public clinics test for free regardless of coverage.

Is there free STD testing near Lancaster, CA?

Yes, Los Angeles County Health Services (3.3 mi) offers free testing, and public clinics serve the uninsured.

Which tests are offered near Lancaster, CA?

Local options test for Chlamydia, Gonorrhea, Syphilis, Herpes, Hepatitis A, Hepatitis B, Hepatitis C, Rapid HIV, a full panel covers the common ones.

How common is chlamydia in Los Angeles County?

About 602 cases per 100,000 residents (2023), above the California average.

Can someone under 18 get tested in California without a parent?

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

Can I get PrEP near Lancaster, CA?

PrEP (HIV-prevention medicine for HIV-negative people) is available locally, any provider can prescribe it.

How long do results take near Lancaster, CA?

Lab results typically come back in 1–2 days.

What samples are used for STD testing near Lancaster, CA?

It depends: a blood draw covers HIV, syphilis, and hepatitis, while urine or a swab covers chlamydia and gonorrhea.

I had unprotected sex, should I get tested?

Yes, test after the window period, and if HIV exposure is a concern, ask about PEP within 72 hours.

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