California Population 2024 Forecast By State. The economist that may not seem much: Benchmarked on the 2020 decennial census count data, our latest round of national population projections provides a look into the demographic future (total population,.

In 2023 california’s population grew by nearly 0.2%, or about 67,000 residents (see chart). At the last official united states census carried out in 2020, the population of california was declared at 39,538,223 which makes the state the most populous by a wide margin over 2nd.