California statistical areas

The U.S. currently has 42 statistical areas that have been delineated by the federal Office of Management and Budget (OMB).

On July 21, 2023, the OMB delineated seven combined statistical areas, 25 metropolitan statistical areas, and ten micropolitan statistical areas in California. As of 2023, the largest of these in the state is the Los Angeles-Long Beach, CA CSA, encompassing greater Los Angeles.

Primary statistical areas
Primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area. Of the 42 statistical areas of California, 21 are PSAs comprising seven combined statistical areas, eight metropolitan statistical areas, and six micropolitan statistical areas.