California State Population 2025 By County. The top five regions with the largest increases—sutter. This page features files containing county population totals and components of change for years 2020 to 2023.
This report provides population estimates for january 1, 2021 through january 1, 2023 and provisional population estimates for january 1, 2025, for the state, counties, and cities. This page features files containing county population totals and components of change for years 2020 to 2023.