MSA The general concept of a metropolitan or micropolitan statistical area is that of a core area containing a substantial population nucleus, together with adjacent communities having a high degree of social and economic integration with that core. Metropolitan and micropolitan statistical areas comprise one or more entire counties. A conceptually similar set of areas is defined in New England using cities and towns and referred to as New England city and town areas (NECTAs).
The Office of Management and Budget (OMB) defines metropolitan and micropolitan statistical areas for purposes of collecting, tabulating, and publishing Federal data. Metropolitan and micropolitan statistical area definitions result from applying published standards to Census Bureau data.
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2000 and 1990 Census Data for Metropolitan Areas, defined as of June 30, 1999, are available through the American FactFinder.
For more information, contact the Population Distribution Branch at (301) 763-2419.
