California Coronavirus Map and Case Count
Tracking Coronavirus in California: Latest Map and Case Count
New reported cases
Tests
Hospitalized
Deaths
| Daily Avg. on Dec. 21 | 14-Day Change | Total Reported | |
|---|---|---|---|
| cases | 8,502 | +20% | 5,238,804 |
| tests | 314,021 | +153% | — |
| hospitalized | 3,911 | +9% | — |
| deaths | 63 | –12% | 76,077 |
About this data
Sources: State and local health agencies (cases, deaths); U.S. Department of Health and Human Services (tests, hospitalizations). Tests, hospitalizations and deaths show seven-day averages. Hospitalization data may not yet be available for yesterday. Figures shown are the most recent data available.Daily new hospital admissions by age in California
This chart shows for each age group the number of people per 100,000 that were newly admitted to a hospital with Covid-19 each day, according to data from the U.S. Department of Health and Human Services. Dips and spikes could be due to inconsistent reporting by hospitals.
- Under 18
- 18-29
- 30-49
- 50-59
- 60-69
- All ages
About this data
Sources: U.S. Department of Health and Human Services (daily confirmed and suspected Covid-19 hospital admissions); Census Bureau (population data). Data prior to October 2020 was unreliable. Data reported in the most recent seven days may be incomplete.Hot spots
Average daily cases per 100,000 people in past weekAbout this data
The hot spots map shows the share of population with a new reported case over the last week.Vaccinations
| At least one dose | Fully vaccinated | ||
|---|---|---|---|
| All ages | 82%
|
66%
| |
| 12 and up | 93%
|
75%
| |
| 65 and up | 95%
|
86%
| |
About this data
Sources: Centers for Disease Control and Prevention, state governments, U.S. Census Bureau. The C.D.C. reported on Nov. 30 that booster doses are sometimes misclassified as first doses, which may overestimate first dose coverage among adults.Mask mandates and guidance
As of Dec. 15, 2021
The New York Times is tracking mask policies at the state level, including current federal guidance by county and where leaders are rejecting such guidance or mandates. Read more here ›
- Masks are mandated indoors by state officials.
- Masks are mandated in schools for all students by state officials.
Reported cases, deaths and other trends by county
This table is sorted by places with the most cases per 100,000 residents in the last seven days. Charts show change in daily averages and are each on their own scale. Select a table header to sort by another metric.
| Cases Daily Avg. | Per 100,000 | 14-day change |
Hospitalized Avg. Per 100,000 | 14-day change | Deaths Daily Avg. | Per 100,000 | Fully Vaccinated | |
|---|---|---|---|---|---|---|---|---|
| Calif.California | 8,502 | 22 | +20%
 | 10 | +9% | 62.9 | 0.16 | 66% |
| Imperial › | 108 | 59 | +7%
 | 28 | +19% | 0.7 | 0.39 | 76% |
| Los Angeles › | 2,991 | 30 | +85%
 | 8 | +31% | 17.3 | 0.17 | 67% |
| San Diego › | 927 | 28 | +9%
 | 11 | +23% | 3.3 | 0.10 | 56% |
| Alpine › | <1 | 27 | —
 | 14 | –19% | — | — | — |
| San Bernardino › | 533 | 24 | –11%
 | 22 | +12% | 1.7 | 0.08 | 53% |
| Riverside › | 603 | 24 | +8%
 | 13 | +32% | 5.0 | 0.20 | 54% |
| Plumas › | 5 | 24 | +3%
 | 14 | –10% | 0.3 | 1.52 | — |
| Modoc › | 2 | 24 | +7%
 | 20 | –25% | 0.1 | 1.62 | — |
| San Francisco › | 207 | 23 | +139%
 | 5 | +43% | 0.3 | 0.03 | 80% |
| Tuolumne › | 12 | 23 | –5%
 | 15 | –17% | 0 | — | 57% |
About this data
Sources: State and local health agencies (cases, deaths); U.S. Department of Health and Human Services (hospitalizations); Centers for Disease Control and state governments (vaccinations); Census Bureau (population and demographic data). The daily average is calculated with data that was reported in the last seven days. Hospitalized for each county shows the average number of Covid-19 patients hospitalized per 100,000 residents within any hospital service areas that intersect with the county. Vaccination data is not available for some counties. All-time charts show data from Jan. 21, 2020 to present.How trends have changed in California
About this data
Sources: State and local health agencies (cases, deaths); U.S. Department of Health and Human Services (tests, hospitalizations). The seven-day average is the average of the most recent seven days of data. Cases and deaths data are assigned to dates based on when figures are publicly reported. Currently hospitalized is the most recent number of patients with Covid-19 reported by hospitals in the state for the four days prior. Dips and spikes could be due to inconsistent reporting by hospitals. Hospitalization numbers early in the pandemic are undercounts due to incomplete reporting by hospitals to the federal government. Tests represent the number of individual P.C.R. viral test specimens tested by laboratories and state health departments and reported to the federal government. Hospitalizations and tests are counted based on dates assigned by the U.S. Department of Health and Human Services and are subject to historical revisions.Outbreak clusters
In the first year of the pandemic, The Times tracked cases in the types of places with some of the worst outbreaks, like nursing homes, food processing plants and correctional facilities.
| Cases Connected To | Location | Cases |
|---|---|---|
| Windsor Palms Care Center nursing home | Artesia, Calif. | 403 |
| Sunnyside Nursing Center | Torrance, Calif. | 377 |
| Kei-Ai Los Angeles Healthcare Center | Los Angeles, Calif. | 354 |
| Glendora Grand skilled nursing | Glendora, Calif. | 330 |
| Huntington Valley Healthcare Center nursing home | Huntington Beach, Calif. | 303 |
| Upland Rehabilitation and Care Center | Upland, Calif. | 301 |
| Pacific Gardens Nursing and Rehabilitation Center | Fresno, Calif. | 288 |
| Terracina Post Acute nursing home | Redlands, Calif. | 287 |
| Valley House Rehabilitation Center | Santa Clara, Calif. | 280 |
| Anaheim Healthcare Center | Anaheim, Calif. | 275 |
About this data
Information on cases linked to these places comes from official releases by governments, companies and institutions directly. The Times is publishing lists of groupings of 50 or more cases related to a specific site, workplace or event.Credits
By Jordan Allen, Sarah Almukhtar, Aliza Aufrichtig, Anne Barnard, Matthew Bloch, Sarah Cahalan, Weiyi Cai, Julia Calderone, Keith Collins, Matthew Conlen, Lindsey Cook, Gabriel Gianordoli, Amy Harmon, Rich Harris, Adeel Hassan, Jon Huang, Danya Issawi, Danielle Ivory, K.K. Rebecca Lai, Alex Lemonides, Eleanor Lutz, Allison McCann, Richard A. Oppel Jr., Jugal K. Patel, Alison Saldanha, Kirk Semple, Shelly Seroussi, Julie Walton Shaver, Amy Schoenfeld Walker, Anjali Singhvi, Charlie Smart, Mitch Smith, Albert Sun, Rumsey Taylor, Lisa Waananen Jones, Derek Watkins, Timothy Williams, Jin Wu and Karen Yourish. · Reporting was contributed by Jeff Arnold, Ian Austen, Mike Baker, Brillian Bao, Ellen Barry, Shashank Bengali, Samone Blair, Nicholas Bogel-Burroughs, Aurelien Breeden, Elisha Brown, Emma Bubola, Maddie Burakoff, Alyssa Burr, Christopher Calabrese, Julia Carmel, Zak Cassel, Robert Chiarito, Izzy Colón, Matt Craig, Yves De Jesus, Brendon Derr, Brandon Dupré, Melissa Eddy, John Eligon, Timmy Facciola, Bianca Fortis, Jake Frankenfield, Matt Furber, Robert Gebeloff, Thomas Gibbons-Neff, Matthew Goldstein, Grace Gorenflo, Rebecca Griesbach, Benjamin Guggenheim, Barbara Harvey, Lauryn Higgins, Josh Holder, Jake Holland, Anna Joyce, John Keefe, Ann Hinga Klein, Jacob LaGesse, Alex Lim, Alex Matthews, Patricia Mazzei, Jesse McKinley, Miles McKinley, K.B. Mensah, Sarah Mervosh, Jacob Meschke, Lauren Messman, Andrea Michelson, Jaylynn Moffat-Mowatt, Steven Moity, Paul Moon, Derek M. Norman, Anahad O’Connor, Ashlyn O’Hara, Azi Paybarah, Elian Peltier, Richard Pérez-Peña, Sean Plambeck, Laney Pope, Elisabetta Povoledo, Cierra S. Queen, Savannah Redl, Scott Reinhard, Chloe Reynolds, Thomas Rivas, Frances Robles, Natasha Rodriguez, Jess Ruderman, Kai Schultz, Alex Schwartz, Emily Schwing, Libby Seline, Rachel Sherman, Sarena Snider, Brandon Thorp, Alex Traub, Maura Turcotte, Tracey Tully, Jeremy White, Kristine White, Bonnie G. Wong, Tiffany Wong, Sameer Yasir and John Yoon. · Data acquisition and additional work contributed by Will Houp, Andrew Chavez, Michael Strickland, Tiff Fehr, Miles Watkins, Josh Williams, Nina Pavlich, Carmen Cincotti, Ben Smithgall, Andrew Fischer, Rachel Shorey, Blacki Migliozzi, Alastair Coote, Jaymin Patel, John-Michael Murphy, Isaac White, Steven Speicher, Hugh Mandeville, Robin Berjon, Thu Trinh, Carolyn Price, James G. Robinson, Phil Wells, Yanxing Yang, Michael Beswetherick, Michael Robles, Nikhil Baradwaj, Ariana Giorgi, Bella Virgilio, Dylan Momplaisir, Avery Dews, Bea Malsky, Ilana Marcus and Jason Kao.
Additional contributions to Covid-19 risk assessments and guidance by Eleanor Peters Bergquist, Aaron Bochner, Shama Cash-Goldwasser, Sydney Jones and Sheri Kardooni of Resolve to Save Lives.
About the data
In data for California, The Times primarily relies on reports from the state, as well as health districts or county governments that often report ahead of the state. California typically releases new data each day. Weekend counts may be lower because fewer sources report to the state. The state reports cases and deaths based on a person’s permanent or usual residence.
The Times has identified reporting anomalies or methodology changes in the data.
More about reporting anomalies or changes
- Nov. 25, 2021: California did not announce new cases and deaths for the Thanksgiving holiday.
- Oct. 25, 2021: California was unable to release new data because of issues related to the storm on Oct. 24. Some counties updated independently.
- Aug. 20, 2021: Los Angeles added about many older cases representing people who were infected twice.
- Aug. 11, 2021: California removed around 400 deaths in Santa Clara County after verifying records.
- July 8, 2021: The Times began including probable cases based on antigen testing in many California counties, resulting in one-time increases.
- July 2, 2021: Santa Clara County removed many deaths from causes unrelated to Covid-19.
- July 1, 2021: California began reporting probable cases based on antigen testing.
- June 30, 2021: California removed many duplicate and incorrectly categorized cases.
- June 6, 2021: California added many San Mateo County deaths from previous months.
- June 4, 2021: Alameda County removed many deaths from causes unrelated to Covid-19.
- May 27, 2021: Los Angeles County added many older cases and deaths.
- April 24, 2021: California removed more than 1,000 duplicate cases in San Diego County, resulting in a one-day decrease in cases.
- March 13, 2021: California made data adjustments resulting in a one-day increase in deaths.
- Feb. 24, 2021: Los Angeles County added many deaths from December and January after reviewing vital records.
- Dec. 16, 2020: California announced a backlog of about 12,000 cases from previous days.
- July 1, 2020: California added a number of cases from a testing backlog.
- New cases reported during the first two weeks of August were artificially low while the state resolved a technical issue with its data system. Some counties temporarily stopped reporting new data during this time.
- Counts for Alameda County include cases and deaths from Berkeley and the Grand Princess cruise ship.
The tallies on this page include probable and confirmed cases and deaths in some counties.
Confirmed cases and deaths, which are widely considered to be an undercount of the true toll, are counts of individuals whose coronavirus infections were confirmed by a molecular laboratory test. Probable cases and deaths count individuals who meet criteria for other types of testing, symptoms and exposure, as developed by national and local governments.
Governments often revise data or report a single-day large increase in cases or deaths from unspecified days without historical revisions, which can cause an irregular pattern in the daily reported figures. The Times is excluding these anomalies from seven-day averages when possible. For agencies that do not report data every day, variation in the schedule on which cases or deaths are reported, such as around holidays, can also cause an irregular pattern in averages. The Times uses an adjustment method to vary the number of days included in an average to remove these irregularities.