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Methodology
Child Population
To Report

IMPORTANT NOTE: On February 27, 2020, this public site was updated to improve navigation, highlight data visualizations, and offer many other new features. At the same time, to protect the privacy of individuals served by CDSS and comply with CDSS data de-identification guidelines, some previously available views of the data were removed. As a result, the following methodology may include references to features not currently available on the public site. An additional change: percentage calculations now include the category Missing, if present. Previously Missing was excluded from percentage calculations. This change supports adherence to data de-identification guidelines and allows users to identify trends in missing data. With the Q1 2020 extract, this change was implemented on the secure site.

These reports summarize the California Department of Finance annual population estimates and projection by county and by age, race/ethnicity, and gender. The child abuse allegation rates, investigation rates, substantiation rates, entry rates and foster care caseload in care rates data available in other reports on this website are based on these population data.

The following table details the specific population data sources by year:

YearSourceLocation
2000-2009California and its Counties Population by Age, Race/Hispanics, and Gender: 2000-2010http://dof.ca.gov/Forecasting/Demographics/Estimates/Race-Ethnic/2000-2010/
2010-forwardReport P-3: Population Projections by Race/Ethnicity, Detailed Age, and Gender, 2010-2060 - July 2021http://dof.ca.gov/Forecasting/Demographics/Projections/

Please note: due to rounding the sum of categories may not equal the total.

Cells containing a period (".") represent a value of zero. In cells representing quotients, a period may also indicate the indeterminate form 0/0.