::List of Metropolitan Statistical Areas


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{{#invoke:Sidebar|sidebar}} {{#invoke:main|main}} The United States Office of Management and Budget (OMB) has defined 381 Metropolitan Statistical Areas (MSAs) for the United States and seven for Puerto Rico.<ref name=OMB_13-01>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The OMB defines a Metropolitan Statistical Area as one or more adjacent counties or county equivalents that have at least one urban core area of at least 50,000 population, plus adjacent territory that has a high degree of social and economic integration with the core as measured by commuting ties.

List of Metropolitan Statistical Areas sections
Intro  United States  Puerto Rico  See also  References  External links  

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