The Indianapolis metropolitan area is an 11-county metropolitan area in the U.S. state of Indiana. Its principal cities are Indianapolis, Carmel, Greenwood, and Anderson. Other primary cities with populations of more than 50,000 include Fishers, Noblesville, and Westfield. Located in Central Indiana, it is the largest metropolitan area entirely within Indiana and the seventh largest in the American Midwest.
There are two official metropolitan boundaries for the Indianapolis metro area: the Indianapolis–Carmel–Greenwood, IN Metropolitan Statistical Area (MSA) and the Indianapolis–Carmel–Muncie, IN Combined Statistical Area (CSA). The two regions are identical except for the addition of three metropolitan areas (Columbus, Kokomo, and Muncie) and six micropolitan statistical areas (Crawfordsville, Greencastle, Greensburg, Seymour, New Castle, and Peru) to the Indianapolis–Carmel–Muncie CSA that are not included in the Indianapolis–Carmel–Greenwood MSA. The population of the MSA was 2,111,040 and the population of the CSA was 2,457,286 as of the 2020 Census.