California State Geoportal

data californiaIt updates hourly using data from the California Department of Water Resources (DWR) website, giving an up-to-date picture of California reservoir levels. This is a marimekko (or mekko) graph which may take someCalifornia 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