Primary metropolitan statistical area
Primary metropolitan statistical area (PMSA) is a geographical region defined by the Office of Management and Budget (OMB) for use by the United States Census Bureau and other federal government agencies for collecting, tabulating, and publishing federal statistics. PMSAs are composed of one or more adjacent metropolitan areas, with a total population of at least 1 million residents.
For example, the New York-Newark PMSA includes the New York City metropolitan area, which is the largest in the United States with a population of over 20 million people.
PMSAs are important for understanding the demographic and economic trends in large urban areas, as well as for planning and allocating resources for public services such as transportation, healthcare, and education.
Examples of Primary Metropolitan Statistical Areas:
- New York-Newark PMSA: Includes New York City metropolitan area
- Los Angeles-Riverside-Orange County PMSA: Includes Los Angeles metropolitan area and surrounding areas
- Chicago-Gary-Kenosha PMSA: Includes Chicago metropolitan area and parts of Indiana and Wisconsin
For more information on Primary Metropolitan Statistical Areas, you can visit Wikipedia.