CSA are at lower levels than those between the counties within an MSA. CSAs represent multiple metropolitan or micropolitan areas that have an employment interchange of at least 15% (% commuting from A to B plus % commuting from B to A). CSAs often represent regions with overlapping labor and media markets.

As of 2023, there are 184 combined statistical areas across the United States, including three in the territory of Puerto Rico.__TOC__

United States

This table lists the 181 combined statistical areas (CSAs) of the

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