California - FRED | St. Louis

data californiaCalifornia Remained Most Populous State but Growth Slowed Last Decade. August 25, 2021 Written by: America Counts Staff. ... Explore California's demographic data,California is a state in United States. The population in California was 39,431,263 in 2025. The median age in California was 37.6 in 2025. The median income in California was $41,901 in