Skip to main content
U.S. flag

An official website of the United States government

COVID-19 Sewershed Restricted Case Data (ARCHIVED)

Published by California Department of Public Health | State of California | Catalog Last Checked: March 28, 2026 at 07:38 PM | Dataset Last Updated: January 26, 2026 at 05:41 PM
__Note: This dataset is no longer being archived as of March 17, 2025.__ The California Department of Public Health (CDPH) aggregates confirmed cases of COVID-19 by sewershed restricted locations. Confirmed cases are defined as individuals with a positive molecular test, which tests for viral genetic material, such as a polymerase chain reaction test. Since wastewater data available starts from January 1st, 2021, rather than the beginning of the COVID-19 pandemic in 2020, the cumulative counts of the confirmed cases variable are shown as “NA”. Please note that values less than 5 for confirmed cases are masked (shown as “Masked”) if the sewershed population size is 50,000 or fewer, in accordance with de-identification guidelines. Values less than 3 for cases are masked (shown as “Masked”) if the sewershed population size is between 50,001 and 250,000. For no confirmed cases reported, values are set as zero.

Resources

3 resources available

  • COVID-19 Sewershed Restricted Case Data - Data Dictionary

    XLSX
  • COVID-19 Sewershed Restricted Case Data

    CSV
  • All resource data

    ZIP

Find Related Datasets

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov