Combined statistical area information

Combined statistical area (CSA) is a United States Office of Management and Budget (OMB) term for a combination of adjacent metropolitan (MSA) and micropolitan statistical areas (μSA) across the 50 U.S. states and the territory of Puerto Rico that can demonstrate economic or social linkage. CSAs were first designated in 2003.^[1]^[2] OMB defines a CSA by various combinations of adjacent metropolitan and micropolitan areas with economic ties measured by commuting patterns. CSAs retain their own designations as metropolitan or micropolitan statistical areas in their respective larger combined statistical areas.

The primary distinguishing factor between a CSA and an MSA/μSA is that the social and economic ties between the individual MSAs/μSAs within a CSA are at lower levels than between the counties within an MSA.^[3] CSAs represent multiple metropolitan or micropolitan areas that have an employment interchange of at least 15%.^[3] CSAs often represent regions with overlapping labor and media markets.

As of 2023, there are 181 combined statistical areas across the United States, plus another three in the territory of Puerto Rico.^[3]

^ "Revised Definitions of Metropolitan Statistical Areas, New Definitions of Micropolitan Statistical Areas and Combined Statistical Areas, and Guidance on Uses of the Statistical Definitions of These Areas" (PDF). Archived (PDF) from the original on January 20, 2022.
^ "OMB Bulletin No. 03-04" (PDF). 2003. Archived from the original (PDF) on November 14, 2020.
^ ^a ^b ^c Executive Office of the President (July 21, 2023). "Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF) (Press release). Archived (PDF) from the original on July 21, 2023. Retrieved July 21, 2023.

[1] "Revised Definitions of Metropolitan Statistical Areas, New Definitions of Micropolitan Statistical Areas and Combined Statistical Areas, and Guidance on Uses of the Statistical Definitions of These Areas" (PDF). Archived (PDF) from the original on January 20, 2022.

[2] "OMB Bulletin No. 03-04" (PDF). 2003. Archived from the original (PDF) on November 14, 2020.

[OMB_23-01-3] Executive Office of the President (July 21, 2023). "Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" (PDF) (Press release). Archived (PDF) from the original on July 21, 2023. Retrieved July 21, 2023.

Combined statistical area information

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Combined statistical area

Metropolitan statistical area

New York metropolitan area

Greater Boston

Greater Los Angeles

Salt Lake City metropolitan area

Louisville metropolitan area

Chicago metropolitan area

Metro Atlanta

San Francisco Bay Area

Nashville metropolitan area

Northeast Ohio

Micropolitan statistical area

North Carolina statistical areas

Savannah metropolitan area

Sarasota metropolitan area

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