Population

(persons)

California is the top region by population in the United States of America. As of 2023, population in California was 39 million persons that accounts for 11.52% of the United States of America's population. The top 5 regions (others are Texas, Florida, New York, and Pennsylvania) account for 36.85% of it. The United States of America's total population was estimated at 338 million persons in 2023.

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What is population?

Annual Estimates of the Resident Population: 2018 Estimates The estimates are based on the 2010 Census and reflect changes to the April 1, 2010 population due to the Count Question Resolution program and geographic program revisions. All geographic boundaries for the 2018 population estimates series except statistical area delineations are as of July 1, 2019