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COVID-19 Data

In an ongoing effort to understand COVID-19 transmission and improve clinical outcomes in our community, Lake County Public Health tracks demographic, geographic and clinical information about confirmed COVID-19 cases. 

Public health officials and staff are monitoring data daily, and will update the website data on business days. Lake County Snapshot data will be updated every business day by 8:00 p.m. The demographic and testing data will be updated every week by Tuesday.

Please be aware that the data presented here is not real-time and may not reflect the most recent information.  

COVID-19 Summary Data

Lake County Tier Status: 
Widespread Transmisssion (Tier 1 / Purple)

February 6-13, 2021:
Daily case rate: 15.4 
per 100,000
Testing positivity: 6.0%
(7-day average)
These data are updated weekly by the CA Department of Public Health. 

Many non-essential indoor business operations are closed.

All open businesses and industries must follow current California industry guidance.
To learn more, visit California's Blueprint for a Safer Economy.

Lake County Snapshot
Updated: February 23, 2021 at 1:28 PM

Source: CalCONNECT

 Lake County Coronavirus Cases at a Glance
  Total Active Recovered Deaths
Total Cases 3,085   129 2,916 40

*On February 22, there were 4 hospitalized patients in Lake County who were COVID-positive. This does not include Lake County residents who are COVID-positive and hospitalized in other counties. Lake County residents who are COVID-positive and hospitalized in other counties are counted in the county hospital data where they are hospitalized. This helps us understand hospital capacity by county and by region. (Source: California Department of Public Health) 

new Cases in lake county, by week

epi curve 2.22.21 

Data Source: CalREDIE as of February 22, 2021.
Data Note: Information will change as COVID test results are received. This graph reflects the weekly count of the number of new cases identified per week (by episode date). Purple indicates the weekly tier status (widespread transmission). 


Demographic Data

Last Update: February 22, 2021 at  11:33 AM

Cases by Gender

Source: CalCONNECT
Gender Cases Percent of Total Cases
Male 1,443 47%
Female 1,613 53%

Cases by Age Range

Source: CalCONNECT
Age Range
(in years)
Cases Percent of Total Cases Percent of County Population
0-14 326 11%  18%
15-19 169 6% 7%
20-34 877 29% 14%
35-44 470 15% 12%
45-54 417 14% 11%
55-64 392 13% 16%
65-74  206 7% 14%
75 and older 204 7% 8%

Cases by Location

Source: CalCONNECT
 District District Total Zip Code Zip Code Total
 District 1 365  95457 130
 95467 153
 95461 82
 District 2 826  95422 813
 95424 13
 District 3 439  95423 126
 95458 99
 95464 115
 95485 91
 95493 6
 95443 2
 District 4 759  95453 723
 95435 36
 District 5 639  95426 29
 95451 610
 Unknown 34  Unknown 34

District Areas:

District 1:  Middletown, Hidden Valley Lake, Anderson Springs, Lower Lake, portions of Clearlake
District 2:  most of the City of Clearlake and areas east
District 3:  Spring Valley, Clearlake Oaks, Clearlake Park (north of the City limits), Glenhaven, Lucerne, Nice, Upper Lake, Blue Lakes, Lake Pillsbury
District 4:  Lakeport, Scotts Valley, Finley, Lampson Airport area, Rivera Heights, Highland Springs, most of Big Valley
District 5:  Kelseyville (town and general area), Riviera West, Clearlake Riviera, Buckingham, Loch Lomond, Cobb

If you are uncertain what Supervisorial District you live in, visit the Lake County District Map, and enter your address.

Cases by Race & Ethnicity

These racial and ethnic categories are based on guidelines from the federal Office of Management and Budget (OMB) data collection standards. 

Case Data Source: CalCONNECT 
Population Data Source: U.S. Census Bureau 2019 1-year American Community Survey estimate, Table DP05

*Cases with unknown race/ethnicity are excluded from denominator to calculate % of cases by race/ethnicity. 
  Number of Cases  Percent of Cases Percent of County Population
Latino or Hispanic 1,207 44.6%  22.0%
White, non-Hispanic or Latino  1,187 43.8% 68.9%
American Indian or Alaska Native, non-Hispanic  159 5.9% 3.3%
Multi-racial  42 1.6% 3.0%
Black or African American, non-Hispanic  35 1.3%  1.9%
Asian, non-Hispanic 26 1.0% 0.8%
Native Hawaiian or Other Pacific Islander, non-Hispanic 21 0.8% <0.5%
Other 32 1.2%  
Unknown* 353 *  


Cases by Source
(Updated weekly)

Mode of Transmission, Lake County Residents through February 20, 2021 (N=2,563*)

Source: CalCONNECT
Source Cases Percent
 of Total Cases
Household Contact 904 35%
Presumed Community Contact 751 29%
Confirmed Community Contact 163 6%
Workplace Contact
(excludes congregate living situations)
267 10%
Congregate Living Settings 246 10%
Close Contact (other) 168 7%
Close Contact (unknown) 48 2%
Close Contact (school-associated) 16 1%

 *Missing data for mode of transmission was excluded from this table.  

(Updated Weekly)

Last Update: February 22, 2021 at 11:35 AM

Source: Lake County Healthcare Partners and CalREDIE
 Lake County Testing Positivity March 2020 through February 22, 2021
Result Total Resulted Percent of Tests
Positive 3,081 10.8%
Negative 25,455 89.2%
Total 28,536 100%


A note about Lake County Testing data:

This data does not include pending tests, antibody tests or tests done at point-of-care providers. This data is not real-time. Delays may occur due to processing, reporting and recording times at state and local levels.

Positive: persons with a confirmed positive COVID-19 test by polymerase chain reaction (PCR).
Negative: tests with a non-positive result for COVID-19 by PCR.
Total tests: total number of negative tests and positive cases that have been completed and resulted to CalREDIE and healthcare partners by the performing lab.



Regional Intensive Care Unit (ICU) Capacity

Updated weekly.

Lake County is in the Northern CA region. As of February 23, the Northern CA region had 34% remaining ICU capacity.


Lake County Story Map


World & US Snapshot


Source: Johns Hopkins University Coronavirus Resource Center