The U.S. currently has 40 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated 11 combined statistical areas, 15 metropolitan statistical areas, and 14 micropolitan statistical areas in Wisconsin. As of 2023, the largest of these is the Milwaukee-Racine-Waukesha, WI CSA, comprising the area around the Wisconsin's largest city, Milwaukee.

Table

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 40 statistical areas of Wisconsin, 16 are PSAs comprising 11 combined statistical areas, two metropolitan statistical areas and three micropolitan statistical areas.