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San Diego County Coronavirus Testing

Viasat Engineering Pavillion

Cal State San Marcos will host a San Diego County-operated, no-appointment walk-up coronavirus testing site beginning Monday, Aug. 10, expanding critical testing services to North County residents. CSUSM students, faculty and staff – along with members of the public – will have access to free COVID-19 testing, which is essential in the ongoing effort to contain the pandemic and reduce the spread of the COVID-19. The testing center, which is open to the public seven days a week, will operate independently of the university within the Viasat Engineering Pavilion, at 333 S. Twin Oaks Valley Road, San Marcos.

Hours of Operation

8:30 a.m.-5 p.m.
Seven Days a Week


Frequently Asked Questions

  • Where is the testing center?

    The testing center is located in the Viasat Engineering Pavilion at Cal State San Marcos.

    After a thorough evaluation of potential sites on campus, it was determined that the Viasat Engineering Pavilion would be the optimal location for several reasons. The Viasat Engineering Pavilion is conveniently located near parking, it does not share an HVAC system with any other facility on campus, and no in-person or hybrid courses or labs will take place in the facility during the fall semester.

    Address: 333 S. Twin Oaks Valley Road, San Marcos (map)

    Directions to the testing center:

    • From Highway 78 (west of I-15 and east of I-5) exit at Twin Oaks Valley Road
    • Travel south on Twin Oaks Valley Road
    • Turn left onto Craven Drive
    • Turn right onto Palm Canyon Drive
    • Continue up the hill and through the signal
    • Turn left into Lot F
    • Follow signs to designated parking spaces
    • The testing center is located in the Viasat Engineering Pavilion
  • Is there a cost to get tested?

     No. Tests are free, and no copay is required.
  • Who will conduct the tests?

    Tests are conducted by County nurses and take 5-10 minutes.
  • What type of testing is being done?

    The county currently provides diagnostic testing, which reveals an active COVID-19 infection. Please visit the County of San Diego testing website or call 2-1-1 for more information.

  • When will I get my results?

    Results from County-coordinated testing sites generally come back in approximately 3 to 5 days. If your test result is negative, you will be notified by e-mail. If your test result is positive, you will be notified by phone and e-mail. When checking e-mail, be sure to also check your junk mail folder. If you do not get an e-mail or call after 5 days, call 2-1-1 to speak to the COVID-19 Nurse Help Line.
  • Do I need a physician’s referral to get tested?

    No. The County testing site does not require a physician’s referral. Health plans are required to cover COVID-19 tests at no cost to the enrollee, even if you are asymptomatic. It is recommended that you first contact your health care provider for a COVID-19 test. If you are unable to get a test from your health care provider, the County has coordinated free diagnostic COVID-19 testing at many locations, including Cal State San Marcos.
  • Can children be tested?

    For children, it is first recommended that you contact your healthcare provider or pediatrician.
    • Most children, youth, and their caregivers can receive testing through the COVID-19 Collaborative for Children in partnership with Rady Children's Hospital. Contact your Rady pediatrician or email for more information. 
    • Children, youth and caregivers covered by Kaiser Permanente should consult with their pediatrician or physician provider directly, or through

    If you are unable to get a test for your child from your healthcare provider, children 6 months and older can be tested at any County-coordinated test site.

  • Is drive-through testing available?

    This testing center is a walk-up only facility.
  • Where do I park?

    Free, designated parking in Lot F is available for visitors who want to be tested. Visitors then follow signage to the testing center, located in the Viasat Engineering Pavilion.
  • Can I make an appointment to be tested?

    No. Visitors are served on a first-come, first-served basis. Please note that wait times may be extensive based on demand. The center is open to the general public and physician referrals are not required.
  • Is the center just for students or members of the campus community?

    No. The County testing site is open to the general public.
  • Why was CSUSM chosen as a testing site?

    The County of San Diego approached CSUSM requesting use of university space to host a no-appointment walk-in testing site to increase access to testing in North County. CSUSM agreed to host a County-operated testing site in consultation with the CSU Chancellor’s Office and public health officials. We would not have considered the County’s proposal if we thought it could put our campus community at unnecessary risk.
  • Are CSUSM employees involved in operating the test center?

    No. CSUSM is only providing space for the testing center. All testing center operations are managed by the County of San Diego. All university-owned furniture and equipment has been removed from spaces being used by the County, and the County is responsible for cleaning all testing areas. A private third-party security company, hired by the County, will be present during the center’s hours of operation.
  • Are CSUSM employees involved in cleaning the testing areas?

    No. The County is responsible for cleaning all testing areas. County employees sanitize testing spaces frequently throughout the day and at the end of each day.
  • Is CSUSM’s University Police Department providing security of the testing center?

    No. Private security has been provided by the County to assist with testing center operations.
  • I don’t live near the campus. Is there a free testing center near me?

    Visit or call 2-1-1 to find a testing center near you.
  • What if I have a question that wasn’t answered here?

    If you have a question for CSUSM, please email For matters related to the testing center, visit the County of San Diego testing website.