This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

Being uninsured does not have to stop you from getting tested. Houston has free clinics, sliding-scale health department centers and community health centers that see people regardless of ability to pay.

This guide is built like a buyer's guide, but it is about services, not products. It shows what to look for, how to compare options, what each setting tends to cost, and which warning signs to watch for. It is for anyone in Houston, of any gender or orientation, who wants cheap STD testing without making it complicated.

If you want the full local list first, see the Houston testing list with what each place costs.

How much is an STD test in Houston?

There is no single price. It depends on where you go and which infections the visit covers.

Here is what the clinics' own pages say:

Free: Harris County Public Health lists its Antoine Clinic services as free, and says uninsured people are welcome. Avenue 360 Health & Wellness lists its rapid testing as free. The Montrose Center lists its walk-in testing as free.
Sliding scale: The Houston Health Department lists its health centers (Northside, Sharpstown and Sunnyside) as sliding scale. That means the fee is based on what you can pay. The department's pages do not list a dollar amount, so ask when you call.
Free for some tests, not stated for others: Legacy Community Health says its HIV, syphilis and hepatitis C testing is free. It also says its services are open to all regardless of ability to pay. Its page does not state a price for a full STI panel.

For urgent care clinics and lab-order services, the sources reviewed for this guide did not publish a price. Prices there vary by company and by which tests are bundled. Ask for the total cost in writing before you agree to testing. Public clinics are the best place to start when cost is the main concern.

What to look for in a low-cost testing option

Price is only one part of the picture. These quality markers matter just as much.

A clear list of what is tested

"STD testing" can mean very different things. Some places test for HIV, syphilis, gonorrhea and chlamydia. Others offer only rapid HIV and syphilis tests. A good provider tells you plainly which infections are included and which are not.

Testing that fits your body and your exposures

The CDC STI Treatment Guidelines (2021) describe testing based on sexual history, anatomy and the type of sex a person has. For example, the sites tested can differ. A clinician can tell you which tests make sense for you. A good clinic asks these questions without judgment.

A path to treatment

The CDC says bacterial STIs and trichomoniasis are curable with treatment from a clinician. HIV, herpes and HPV are not curable, but they are treatable or manageable. A clinic that can test and treat in one place saves you a second trip. Treatment is always something a clinician prescribes after your results.

Privacy and clear consent

Ask how results are delivered and who can see them. Under Texas law, a minor of any age can consent to diagnosis and treatment of a reportable infectious disease. That includes reportable STIs and HIV (Texas Family Code Sec. 32.003). Parent or guardian consent is not needed. The same statute lets a physician tell a parent or guardian about the treatment, with or without the minor's consent. So a provider cannot promise a teen that a parent will never be told.

The Houston Health Department also notes that Texas SB 1188 (effective September 1, 2025) gives parents and guardians full access to a minor's electronic health record, such as MyChart. Teens should ask a clinic how portal access works before they test.

Reporting is routine

Texas DSHS lists chlamydia, gonorrhea, syphilis and HIV as notifiable conditions in 2026. Labs and clinicians report positive cases to public health. That is standard practice, and it is how health departments track and respond to outbreaks.

Key features to compare

Use these questions to compare any two options. Most can be answered in one short phone call.

Which infections are included? Ask for the full list by name.
What is the total cost? Ask about the visit fee, lab fees and any separate charge for treatment.
Is the panel bundled? A bundled panel can cost less than separate tests. It can also include tests you did not want. Ask what each add-on costs and whether you can choose.
Walk-in or appointment? Houston Health Department centers still accept walk-ins as capacity permits. Appointments are encouraged as of September 1, 2026, so a walk-in is not guaranteed.
How soon are results ready? Rapid tests give results at the visit. Lab tests take longer.
What happens after a positive result? Ask whether treatment is available on site or by referral.
When should you test? The CDC publishes window periods for each infection. A clinician can tell you whether a repeat test makes sense for your situation.

Options by price point

Instead of ranking brands, here are the types of options in Houston, from lowest to highest cost. All details come from each organization's own pages.

Free options

Provider	What the provider lists	Contact and hours
Harris County Public Health Antoine Clinic	Testing for HIV, syphilis, gonorrhea and chlamydia; PrEP; STI treatment; rapid HIV testing; free; walk-ins welcome	5815 Antoine Dr, Houston, TX 77091. 832-927-7350. Monday to Thursday 8am to 7pm, Friday closed, every other Saturday 8am to 2pm. Confirm before you go.
Avenue 360 Health & Wellness	Free walk-in rapid HIV, hepatitis C and syphilis testing	Heights: 2150 West 18th Street, Suite 300, 77008. Midtown: 2920 Fannin St., 77002. Both (713) 426-0027. Monday to Friday 8:30AM to 4:30PM. The site lists a full STI panel as not described.
The Montrose Center	Free rapid HIV, hepatitis C and syphilis testing. No full STI panel or PrEP.	401 Branard Street, Houston, Texas 77006. 713-529-0037. Walk-in Monday to Thursday 9AM to 2PM.

Sliding-scale options

The Houston Health Department health centers offer STD services on a sliding scale. The call line for all three is 832-393-4220:

Northside Health Center, 8504 Schuller Rd., Houston, Texas 77093
Sharpstown Health Services, 6201 Bonhomme Rd., 3rd Floor, South Tower, Houston, Texas 77036
Sunnyside Health and Multi-Service Center, 4410 Reed Rd., Houston, Texas 77051

The department lists PrEP and nPEP by appointment at 832-395-9800. Staff also help with co-pay and assistance programs.

Community health center

Legacy Community Health in Montrose (1415 California St., Houston, TX 77006, (832) 548-5100) offers walk-in HIV, syphilis and hepatitis C testing. A full STI panel is available as appointments are open. Legacy also lists express STI testing for uninsured patients without symptoms. It also lists doxy-PEP, which is a prescription a clinician decides on after talking with you. Since the full-panel price is not published, ask when you call.

Urgent care and lab-order services

These can be convenient, especially after hours. No published prices were available in the sources reviewed here. Costs can add up when a visit fee and separate lab fees are billed on top of each other. If you choose one, ask for the full price first. No recommendation is made here for any paid service.

Testing from home

Several free options do not require a clinic trip:

Test for Texas: Texas DSHS lists a free mail-order self-collection kit for HIV, syphilis, gonorrhea and chlamydia. It is for anyone in Texas aged 13 and older, and no insurance is needed. Orders are placed at testfortexas.org.
Together TakeMeHome: A free pack of two HIV self-tests for U.S. residents aged 17 and older, once per 90 days. The Houston Health Department links to it.
Legacy at-home rapid HIV test: Free and mailed after a phone screening, subject to availability.
Harris County Public Health Testing123: Free mobile HIV and syphilis testing at a place you choose in Harris or Montgomery County. Staff come to you. Text (281) 962-8378.

Medicaid, Texas programs and bundled panels

If you have Medicaid or another Texas program, ask the clinic whether it accepts it before you book. The sources reviewed for this guide did not list Medicaid billing details for each clinic, so the clinic is the best source.

Whether you are insured or not, ask these two questions about panels:

"Which infections are in this panel, and what does each one cost on its own?"
"If a test is positive, what is the charge for the follow-up visit and treatment?"

If a quote feels unclear, say so. A good clinic is glad to explain it.

Red flags to avoid

Most places that offer testing are trustworthy. These signs are worth a pause:

No list of what is tested. If staff cannot say which infections a panel covers, ask again or choose another provider.
A price that is not written down. Ask for the full cost, including lab and visit fees, before you say yes.
Pressure to buy extras. You can say no to add-ons.
Promises that sound too perfect. No test is perfect, and the CDC notes that timing matters. Be wary of any provider who skips that conversation.
Judgment or shame. Good providers do not lecture. You deserve respectful care.
No plan for positive results. A provider should explain next steps and treatment options before you test.

Local context

Texas DSHS's 2022 STD Surveillance Report counted 31,406 chlamydia cases in Harris County, a rate of 656.9 per 100,000. The Texas rate that year was 519.9 per 100,000. For gonorrhea, Harris County had 12,935 cases, or 270.6 per 100,000, compared with 207.0 for Texas.

For HIV, the Houston Health Department reports 1,343 new diagnoses in Houston/Harris County in 2023, a rate of 27.5 per 100,000. These are counts of reported cases. They show why routine testing is a normal part of health care here, not something unusual.

Where to go next

A simple plan:

Pick one free or sliding-scale site from the table above.
Call to confirm hours, walk-in status and which tests are included.
Ask the cost questions listed earlier.
Get tested, and ask a clinician when to repeat testing.

You can also use the CDC's locator at gettested.cdc.gov to find testing sites by ZIP code. For the full Houston list and costs, see the Houston testing guide.

Low-Cost STD Testing in Houston Without Insurance