SMART: BRFSS Frequently Asked Questions (FAQs)
- Metropolitan statistical area — Group of counties that contain at least one urbanized area of 50,000 or more inhabitants (e.g., Atlanta-Sandy Springs-Marietta, GA)
- Micropolitan statistical area — Group of counties that contain at least one urban cluster of at least 10,000 but less than 50,000 inhabitants (e.g., Willimantic, CT)
- Metropolitan division — A smaller group of counties within a metropolitan statistical area of 2.5 million or more inhabitants (e.g., Boston-Quincy, MA within Boston-Cambridge-Quincy, MA-NH Metropolitan Statistical Area
The U.S. Census Bureau Web siteExternal has more information on MMSAs.