Founded on Jan 29, 1832, LaPorte County is one of 92 counties in the state of Indiana. Historically, LaPorte County was formed from St. Joseph and un-organized. The city of LaPorte is the county seat. With FIPS code of 91, LaPorte County has a population of 112,390 and area of 598 square miles (1,549 km2).
List of all cities in LaPorte County, IN alphabetically
| City/Town | Postal Code | Area Code |
| City, IN | 46360 | 219 |
| Hanna, IN | 46340 | 219 |
| Haskells, IN | 46390 | 219 |
| Kingsbury, IN | 46345 | 219 |
| Kingsford Heights, IN | 46346 | 219 |
| La Crosse, IN | 46348 | 219 |
| La Porte, IN | 46350 | 219 |
| 46352 | 219 | |
| Long Beach, IN | 46360 | 219 |
| Mich City, IN | 46360 | 219 |
| Michiana Shores, IN | 46360 | 219 |
| Michigan City, IN | 46360 | 219 |
| 46361 | 219 | |
| Mill Creek, IN | 46365 | 219 |
| Otis, IN | 46391 | 219 |
| Rolling Prairie, IN | 46371 | 219 |
| South Wanatah, IN | 46390 | 219 |
| Thomaston, IN | 46390 | 219 |
| Trail Creek, IN | 46360 | 219 |
| Union Mills, IN | 46382 | 219 |
| Wanatah, IN | 46390 | 219 |
| Wellsboro, IN | 46382 | 219 |
| Westville, IN | 46391 | 219 |