Founded on Feb 7, 1835, Porter County is one of 92 counties in the state of Indiana. Historically, Porter County was formed from un-organized. The city of Valparaiso is the county seat. With FIPS code of 127, Porter County has a population of 174,243 and area of 418 square miles (1,083 km2).
List of all cities in Porter County, IN alphabetically
| City/Town | Postal Code | Area Code |
| Beverly Shores, IN | 46301 | 219 |
| Boone Grove, IN | 46302 | 219 |
| Burns Harbor, IN | 46304 | 219 |
| Chesterton, IN | 46304 | 219 |
| Dune Acres, IN | 46304 | 219 |
| Hebron, IN | 46341 | 219 |
| Kouts, IN | 46347 | 219 |
| Ogden Dunes, IN | 46368 | 219 |
| Portage, IN | 46368 | 219 |
| Porter, IN | 46304 | 219 |
| Valparaiso, IN | 46383 | 219 |
| 46384 | 219 | |
| 46385 | 219 | |
| Valpo, IN | 46383 | 219 |
| 46384 | 219 | |
| 46385 | 219 | |
| Wheeler, IN | 46393 | 219 |