The tables in this section summarize available data on the population of the State of California, its counties and cities. Comparisons of California’s population with the totals for the Nation are also shown.

All figures on the total population of California for 1940 through 1969 are from publications of the United States Bureau of the Census. All estimates of the civilian population and estimates of the total population for the state and counties after 1969 were prepared by the Department of Finance and are based on the analysis of components of population change. Data used in the preparation of these estimates have been obtained from the

Vital Statistics Section, Department of Health; Department of Education; the Immigration and Naturalization Service; United States Department of Defense; the Department of Motor Vehicles; and the United States Bureau

of the Census.

In addition to the preceding data sources, the estimates for cities also use information supplied by the cities in California and their respective utility companies.

Also included in this section are selected data on population by race and age from the U.S. Bureau of the Census and the California Department of Finance.