The state of Indiana, USA is currently served by a total of 8 area codes:
These Indiana area codes overlay (cover the same geographic area). The first code listed is the parent code. Overlay area codes are added when no more phone numbers are available in an existing Numbering Plan Area.
| City | County | Area Codes |
|---|---|---|
| Anderson | Madison | 765 |
| Bloomington | Monroe | 812, 930 |
| Carmel | Hamilton | 317, 463 |
| Columbus | Bartholomew | 812, 930 |
| Crown Point | Lake | 219 |
| Elkhart | Elkhart | 574 |
| Evansville | Vanderburgh | 812, 930 |
| Fishers | Hamilton | 317, 463 |
| Fort Wayne | Allen | 260 |
| Gary | Lake | 219 |
| Goshen | Elkhart | 574 |
| Granger | St Joseph | 574 |
| Greenwood | Johnson | 317, 463 |
| Hammond | Lake | 219 |
| Indianapolis | Hamilton | 317, 463 |
| Jeffersonville | Clark | 812, 930 |
| Kokomo | Howard | 765 |
| Lafayette | Tippecanoe | 765 |
| Merrillville | Lake | 219 |
| Michigan City | La Porte | 219 |
| Mishawaka | St Joseph | 574 |
| Muncie | Delaware | 765 |
| New Albany | Floyd | 812, 930 |
| Noblesville | Hamilton | 317, 463 |
| Plainfield | Hendricks | 317, 463 |
| Portage | Porter | 219 |
| Richmond | Wayne | 765 |
| South Bend | St Joseph | 574 |
| Terre Haute | Vigo | 812, 930 |
| Valparaiso | Porter | 219 |
| West Lafayette | Tippecanoe | 765 |
| Westfield | Hamilton | 317, 463 |