Founded on Apr 1, 1813, Gibson County is one of 92 counties in the state of Indiana. Historically, Gibson County was formed from Knox County. The city of Princeton is the county seat. With FIPS code of 51, Gibson County has a population of 32,924 and area of 487 square miles (1,261 km2).
List of all cities in Gibson County, IN alphabetically
| City/Town | Postal Code | Area Code |
| Buckskin, IN | 47647 | 812 |
| Fort Branch, IN | 47648 | 812 |
| Francisco, IN | 47649 | 812 |
| Haubstadt, IN | 47639 | 812 |
| Hazleton, IN | 47640 | 812 |
| Mackey, IN | 47654 | 812 |
| Oakland City, IN | 47660 | 812 |
| Owensville, IN | 47665 | 812 |
| Patoka, IN | 47666 | 812 |
| Princeton, IN | 47670 | 812 |
| Somerville, IN | 47683 | 812 |
| Warrenton, IN | 47639 | 812 |