COVID-19 Testing Information


Mariposa County has two (2) FREE COVID-19 Testing Sites, all sites are sponsored and funded by the State of California, Office of Emergency Services, and run by OptumServe.

NOTE: Effective 5/17/22, The FDA has authorized via an Emergency Use Authorization (EUA) a COVID-19 test that also detects flu & RSV. View this FDA webpage for more information.

Both of the two (2) FREE testing sites in Mariposa County (listed below) will offer Antigen (Rapid) Testing, in addition to PCR testing! PCR tests are available by walk-in only.

  • Park & Ride parking lot, behind Rite Aid located at 4994 Joe Howard Street, Mariposa, CA 95338, open Tuesdays through Saturdays 10 am - 2 pm (closed 2-3 pm for lunch) and 3-6 pm. PCR Testing is available during all open hours.
    • NOTE: No Antigen (Rapid) Testing available at this site from 1:30 pm - 2:00 pm and after 5:00 pm.
  • New Extended Hours - Curry Village Wellness Center at 8324 Sierra Circle, Yosemite Valley, CA 95389, open Thursdays from 7:00 am - 12:00 noon,1:00 pm - 4:30 pm & from 5:00 pm - 7:00 pm.
  • Yosemite Medical Clinic  
    • NOTE: The OptumServe-run testing site located at the Yosemite Medical Clinic (YMC) has been closed.

To schedule your FREE covid-19 test

Please call: 1-888-634-1123    or visit:

PCR tests are available by walk-in only.

Transportation Assistance to Testing Site

If you need assistance with transportation, please call 209-966-2000 and ask to speak with someone in Transportation.



For more information on the Test-To-Treat initiative review this helpful information on our COVID-19 Treatments page.

The LHI OptumServe Testing Site located at the Park & Ride parking lot behind Rite Aide at 4994 Joe Howard Street is a Test-To-Treat location.


Every home in the U.S. is now eligible to place a third order of free rapid at-home COVID-19 test kits. Each test kit contains four (4) tests, just like the previous order through the Federal Government's At-Home Test Distribution Program. Test kit orders will usually ship in 7-12 days and can be requested by visiting or by calling 1-800-232-0233 or 1-888-720-7489.

How to place a second order of free test kits:

  1. Go to (English, SpanishSimplified Chinese) 
  2. Click the blue button that says "order free at home tests"
  3. Fill out the information with your residential address
  4. Click the green button that says "check out now"

What if I never placed a first order?

If you have not placed an initial order of test kits, you can still place your first, second AND third order. Complete the ordering process above as many times as applicable - to order a  first, second and/or third order.

Additional rapid testing options may be available at local pharmacies such as Rite Aid as well as through your Primary Care Physician.

Additional Information:


Mariposa County Unified School District (MCUSD) has testing available for students at locations around the county. Testing has been expanded to include MCUSD students' parents/guardians as well as school volunteers. Learn more about testing through MCUSD here.

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