Getting Tested for STDs in San Mateo, CA

Sexually transmitted disease (STD) testing in San Mateo is confidential, and you have several options depending on what matters most to you. You can choose a clinic visit, urgent care, a private lab collection site, or an at-home collection kit. Many locations keep the process discreet and explain what to bring and how you will receive results.

You can narrow your STD testing options by cost, turnaround time, and commute. If you live or work near the east side, a San Mateo location may be the easiest fit, while nearby sites in Foster City or South San Francisco may work better. In San Mateo County, chlamydia is the most commonly reported STD, followed by gonorrhea, so routine screening is a normal part of care.

Testing is a routine part of sexual health care, even when you do not have symptoms. In San Mateo, you can choose from same-week appointments, walk-in clinics, and lower-cost community sites, or explore STD testing in California for additional options.

Find an STD Testing Location in San Mateo, CA

You can find STD testing in San Mateo through clinics, urgent care centers, and nearby public health sites. Locations near S. San Mateo Dr. and Baywood Ave. may be the most convenient if you want to stay in the city, while Foster City and South San Francisco may work better depending on your commute. A health care provider can help you decide which tests fit your symptoms, recent exposure, and medical history.

What to expect from STD testing

STD Testing Options in San Mateo, CA

You have a few main options for STD testing in San Mateo. The right choice often depends on privacy, cost, whether you want a walk-in visit, and how soon you want results.

  • At-home testing: at-home STD tests use a sample you collect at home and mail to a certified lab. Results are typically returned through a secure portal.
  • In-clinic testing: You can test through a primary care provider, gynecologist, urgent care center, or community clinic. This can be a good fit if you also want an exam or follow-up care during the same visit.
  • Private lab testing: LabCorp or Quest Diagnostics collection sites in the area may offer appointments or limited walk-in collection, depending on the location and whether a provider has ordered the testing.
  • Public health or community clinics: County-run or nonprofit clinics can be a practical option if you want a lower-cost visit or do not have a regular provider.
STD testing options in San Mateo

When Should I Get Tested for STDs?

If you’re sexually active in San Mateo, chlamydia and gonorrhea are the most commonly reported STDs in the county, and those are the infections most worth screening for. Recent unprotected sex, a new partner, or possible exposure are common reasons to schedule testing even if you feel fine. Many STDs have no symptoms, and testing is the only way to know your status. The CDC recommends routine screening for sexually active people based on age and risk. A health care provider can help you decide which tests make sense for you.

What Will Be Tested in an STD Panel?

You can ask for specific STD tests or a full panel. A health care provider may suggest certain tests based on your symptoms, recent exposure, and sexual history.

Here’s what usually happens during STD testing:

  1. Check in at the front desk or complete online registration.
  2. Provide a urine sample, blood sample, or swab, depending on the tests ordered.
  3. Wait for results, which are typically ready in one to three business days for lab-based tests.

A routine STD panel may include:
– Chlamydia
– Gonorrhea
– HIV 1 and 2
– Syphilis

A full-panel STD test may also include:
– Herpes (oral, genital)
– Hepatitis (A, B, C)

How Much Will STD Testing Cost in San Mateo, CA?

Costs in San Mateo can range from free to about $250, depending on the provider and the tests you need. If you have insurance, most plans cover preventive STD testing at 100% with no copay, though visit charges and follow-up testing can vary. If you do not have insurance, clinics such as Planned Parenthood – San Mateo Health Center and San Mateo County Health locations may offer sliding-scale fees, and some services may be free for qualifying residents. Private options usually cost more, and at-home STD tests are often around $169.

How Fast Will I Get My Test Results in San Mateo, CA?

Most STD test results in San Mateo are ready in one to three business days. Private lab collection sites and many clinics use similar lab turnaround times, though some locations offer same-day HIV screening. Public or community clinics may take longer because of appointment demand and lab volume. Before you schedule a visit, ask how results are delivered and when you should expect them.

STI Statistics in San Mateo County, CA

Chlamydia is the most commonly reported STD in San Mateo County, with a rate of 360.4 cases per 100,000 people. Because chlamydia often has no symptoms, routine screening remains a standard part of sexual health care in the county.

Gonorrhea is the second most reported STD locally, with 910 reported cases. Together, chlamydia, gonorrhea, and syphilis accounted for 3,595 reported cases in the latest county-level reporting.

HIV is also part of the local picture. San Mateo County has 1,707 people living with HIV, or 271.4 per 100,000 people. Those numbers line up with broader CDC STI statistics and support routine testing on a schedule that fits your age, partners, and risk factors.



Cities Near San Mateo, CA for STD Testing

Free STD Testing Centers in San Mateo, CA

San Mateo and nearby cities have clinics and urgent care centers that may offer free or low-cost STD testing. These sites can be helpful if you want confidential care, do not have insurance, or do not have a regular provider. Services, hours, and eligibility rules vary, so call ahead before you go.

AfterOurs Urgent Care

  • Address: 1098 Foster City Blvd., Suite 104, Foster City, CA 94404
  • Number: (650) 918-4027
  • Hours:
    • Monday: 10 a.m. to 6 p.m.
    • Tuesday: 10 a.m. to 6 p.m.
    • Wednesday: 10 a.m. to 6 p.m.
    • Thursday: 10 a.m. to 6 p.m.
    • Friday: 10 a.m. to 6 p.m.
    • Saturday: 9 a.m. to 5 p.m.
    • Sunday: 9 a.m. to 5 p.m.

AHF Healthcare Center – San Francisco

  • Address: 518A Castro St., San Francisco, CA 94114
  • Number: (415) 552-2814
  • Hours: Not listed

Planned Parenthood – San Mateo Health Center

  • Address: 29 Baywood Ave., San Mateo, CA 94402
  • Number: (650) 235-7940
  • Hours: Not listed

RealOptions Obria Medical Clinics of Union City

  • Address: 33523 Western Ave., Union City, CA 94587
  • Number: (510) 487-4357
  • Hours:
    • Monday: 9 a.m. to 5 p.m.
    • Tuesday: 9 a.m. to 5 p.m.
    • Wednesday: 9 a.m. to 5 p.m.
    • Thursday: 9 a.m. to 5 p.m.
    • Friday: 9 a.m. to 5 p.m.
    • Saturday: Not listed
    • Sunday: Not listed

South San Francisco Clinic

  • Address: 306 Spruce Ave., South San Francisco, CA 94080
  • Number: (650) 877-7070
  • Hours: Not listed

Sutter Urgent Care – San Mateo

  • Address: 100 S. San Mateo Dr., San Mateo, CA 94401
  • Number: (650) 696-4427
  • Hours: Not listed