Indianapolis Metro Area Counties

11 counties · 2.2 million people (2025) · 4,086 sq mi

The Indianapolis metro area (officially the Indianapolis-Carmel-Greenwood, IN Metropolitan Statistical Area) has 11 counties in Indiana, with 2,205,695 people in 2025. Marion County is the most populous.

Map of the 11 counties of the Indianapolis metro area with county names and major cities
The 11 counties of the Indianapolis metro area (yellow) with the largest cities. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
PDF (Letter) 185 KBPNG (2400 px) 112 KB

The 11 counties of the Indianapolis metro area

Sorted by population. 7 are central counties (the urban core); the others are outlying counties tied to it by commuting.

CountyCounty seatPopulation 2025Change since 2020Land area (sq mi)Type
Marion CountyIndianapolis992,196+1.5%396Central
Hamilton CountyNoblesville387,036+11.4%394Central
Hendricks CountyDanville193,510+10.7%407Central
Johnson CountyFranklin174,262+7.7%320Central
Madison CountyAnderson135,088+3.8%452Outlying
Hancock CountyGreenfield90,969+14%306Central
Boone CountyLebanon80,689+14%423Central
Morgan CountyMartinsville74,967+4.5%404Central
Shelby CountyShelbyville45,882+1.8%411Outlying
Brown CountyNashville15,777+2%312Outlying
Tipton CountyTipton15,319−0.2%261Outlying

The metro area is part of the larger Indianapolis-Carmel-Muncie, IN Combined Statistical Area.

Printable map

The PDF is a vector file for Letter paper; the PNG is 2400 pixels wide. Both are free to use with a credit to WhichCounty.

County maps of Indiana

Other metro areas

All 97 metro area county maps

Sources