California Population 2024 Graph By County. The top five regions with the largest increases—sutter county, imperial county, glenn county, yuba county, and san benito county—illustrate the factors driving this growth. This map shows projected population growth from 2023 to 2028 in the us by country, state, county, tract, and congressional district.

5 california cities with the highest growth. Not surprisingly, california’s los angeles county is the largest county in the state, as well as the nation, with a huge population of 10,150,558 that continues.