Iowa statistical areas
The U.S. currently has 31 Statistical [area (United States)|statistical areas] that have been delineated by the Office of Management and Budget. On July 21, 2023, the OMB delineated seven combined statistical areas, nine metropolitan statistical areas, and 15 micropolitan statistical areas in Iowa. As of 2023, the largest of these is the Des Moines-West Des Moines-Ames, IA CSA, comprising the area around Iowa's capital and largest city, Des Moines.