The Kalamazoo–Portage Metropolitan Area comprises a region surrounding Kalamazoo.
2015 estimates placed it as the 151st largest among similarly designated areas in the United States.
As of the 2020 census, the Metropolitan Statistical Area (MSA) had a population of 261,670.
[3] The Kalamazoo–Battle Creek–Portage Combined Statistical Area ties for 3rd largest CSA in the U.S. state of Michigan.
The CSA combines the two population centers of Kalamazoo and Battle Creek.