Almost four years into the COVID-19 pandemic, finding a free antigen test has become a lot harder.
And with COVID-19 numbers on the rise again as the holidays approach — and high levels of respiratory virus around the state generally, including RSV and flu — establishing whether your runny nose and sore throat is, in fact, COVID-19 may have become even more of a priority in your own household recently.
One place you now might be able to find a free COVID-19 at-home test? Your local public library.
Free COVID-19 tests, no library card needed
Many libraries around the Bay Area have a supply of antigen tests to give out to anyone who wants one — with no proof of library card or county residency required. One of those is the San Francisco Public Library system, which distributes 15,000 free tests this winter in multiple branch locations around the city. The library is not limiting how many tests a person can take.
Dolly Goyal, the library’s chief of public services, says these free tests will be beneficial for families as schools around the county get ready to close for the holidays. The library system, she says, wants “to make sure families get these before they might go on vacation or anywhere else” to limit the spread of COVID-19 in the community.
The San Francisco Public Library urges community members to take as many antigen tests as they feel they need — because those at-home kits expire early in 2024. That said, the San Francisco Public Health Department says COVID-19 tests can still be used past the expiration date.
You can check the FDA’s list of antigen test types to see whether the box you’re holding has had its shelf life extended by the manufacturer. The FDA says that if a test’s shelf life has been extended, it’s because the manufacturer has given the agency enough “data showing that the shelf-life is longer than was known when the test was first authorized.” (In other words, it’s still OK to use that test.)
Keep reading to determine whether your Bay Area county’s public library offers free COVID-19 antigen tests this winter. And if they aren’t, we have tips on where else to still find free or low-cost COVID-19 testing near you below.
(Looking for information on the best time to take a COVID-19 test if you’re experiencing symptoms? Read our guide to current COVID-19 incubation periods.)
The Bay Area public libraries giving out free COVID-19 tests
Individual libraries may have different limits on how many COVID-19 tests you can take each time. County library systems are also often separate from city libraries — so you may wish to ask your local city library, too.
San Francisco
See above: The San Francisco Public Library is distributing COVID-19 tests at its locations around the city. Find your local San Francisco Public Library branch.
Berkeley
Starting Monday, Dec. 18, Berkeley public libraries will have “a limited supply” of free COVID-19 tests at every location. Find your local Berkeley Public Library branch.
Contra Costa County
All 26 of Contra Costa County Library’s locations offer free COVID-19 tests. Find your local Contra Costa County Library branch.
Solano County
Free COVID-19 tests are available at every location of the Solano County Library. Find your local Solano County Library branch.
San Mateo, Sonoma, Marin and Napa counties have confirmed to KQED that they are not currently offering COVID-19 tests at their library locations.
While the Santa Clara County Library District is not currently offering free COVID-19 tests, county residents can pick up free antigen tests at any Better Health Pharmacy. We’ll update this guide with information about Alameda County.

