https://www.mercurynews.com/2020/06/24/coronavirus-here-are-40-places-to-get-tested-for-free-in-the-bay-area/

As California continues to rack up record numbers of coronavirus infections, COVID-19 testing continues to expand in the Bay Area.

Think you need to be tested? Testing services are available across various hospitals, county and third-party sites available to the general public (here’s a map of various providers across the Bay Area). For the most part, they do not require you to be symptomatic — though some sites will screen you for eligibility — and require no out-of-pocket expense.