California Coronavirus Cases and Deaths

Track the spread of COVID-19 by state

Data Updated Sep 18, 2020

Coronavirus cases continue to grow in California. From cities to rural towns, stay informed on where COVID-19 is spreading to understand how it could affect families, commerce, and travel. Follow new cases found each day and the total number of cases and deaths in California. The county-level tracker makes it easy to follow COVID-19 cases on a granular level, as does the ability to break down infections per 100,000 people. This county visualization is unique to USAFacts and will be updated with the most recent data as frequently as possible. The underlying data is available for download below the US county map and has helped government agencies like the Centers for Disease Control and Prevention in its nationwide efforts.

Known Cases


(+4,126 reported Sep 17)



(+103 reported Sep 17)


Known Cases of COVID-19

New Known Cases Per Day

New Known Deaths Per Day

Cumulative Cases

Cumulative Deaths

County Stats for California

CountyKnown CasesDeathsKnown Cases (Per 100K)
Alameda County20,1623651,206.3
Alpine County20177.1
Amador County24816623.9
Butte County2,674331,220.0
Calaveras County30513664.4
Colusa County50262,329.8
Contra Costa County15,6401981,355.8
Del Norte County1351485.4
El Dorado County1,0584548.6
Fresno County27,3813482,740.6
Glenn County54831,930.1
Humboldt County4826355.6
Imperial County11,4573106,322.3
Inyo County187141,036.6
Kern County31,1483403,460.1
Kings County7,201774,708.4
Lake County43310672.5
Lassen County73102,391.0
Los Angeles County257,2716,3242,562.7
Madera County4,270582,714.1
Marin County6,5201122,519.1
Mariposa County752436.0
Mendocino County82218947.6
Merced County8,7191333,139.9
Modoc County120135.7
Mono County16321,128.5
Monterey County9,337652,151.1
Napa County1,586131,151.4
Nevada County5035504.2
Orange County51,3991,1151,618.5
Placer County3,38541849.8
Plumas County490260.5
Riverside County56,3741,1432,281.8
Sacramento County20,9613711,350.5
San Benito County1,260102,006.1
San Bernardino County51,4678392,360.8
San Diego County43,6197541,306.6
San Francisco, City and County of10,569911,198.9
San Joaquin County19,7014072,584.9
San Luis Obispo County3,332271,176.9
San Mateo County9,3321421,217.4
Santa Barbara County8,8031091,971.6
Santa Clara County19,8912951,031.8
Santa Cruz County2,1758796.1
Shasta County66114367.1
Sierra County60199.7
Siskiyou County1600367.5
Solano County6,054551,352.4
Sonoma County6,8741141,390.6
Stanislaus County16,1503252,932.8
Sutter County1,631101,681.9
Tehama County4824740.6
Trinity County150122.1
Tulare County15,5172563,328.4
Tuolumne County2204403.8
Ventura County11,9291421,410.0
Yolo County2,721531,234.0
Yuba County1,11271,413.5

To learn more about how we did this, visit our detailed methodology and sources page.

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