Combined Statistical Areas

Combined Statistical Areas (CSAs) are geographical regions in the United States that group multiple adjacent metropolitan and micropolitan areas based on social and economic connections. The U.S. Census Bureau defines these areas to reflect how people live and work, often commuting between them. For instance, a CSA may include a major city and its nearby smaller cities and towns, highlighting their interconnectedness. CSAs help in understanding demographics, planning services, and analyzing regional economies, providing a more comprehensive view of urban and rural interactions than individual areas alone.