Estimates | Department of Finance - California

data californiaCalifornia. Observed data are for 1900–2020. Projected changes for 2006–2100 are from global climate models for two possible futures: one in which greenhouse gas emissions continue toCalifornia 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