Founded on Feb 7, 1835, Whitley County is one of 92 counties in the state of Indiana. Historically, Whitley County was formed from un-organized. The city of Columbia City is the county seat. With FIPS code of 183, Whitley County has a population of 34,430 and area of 336 square miles (870 km2).
List of all cities in Whitley County, IN alphabetically
| City/Town | Postal Code | Area Code |
| Ari, IN | 46723 | 260 |
| Big Lake, IN | 46725 | 260 |
| Blue Lake, IN | 46723 | 260 |
| Churubusco, IN | 46723 | 260 |
| Coesse, IN | 46725 | 260 |
| Collamer, IN | 46787 | 260 |
| Collins, IN | 46725 | 260 |
| Columbia City, IN | 46725 | 260 |
| Eel River, IN | 46723 | 260 |
| Etna, IN | 46725 | 260 |
| Etna-Troy, IN | 46764 | 260 |
| Goose Lake, IN | 46725 | 260 |
| Larwill, IN | 46764 | 260 |
| Laud, IN | 46725 | 260 |
| Loon Lake, IN | 46725 | 260 |
| Lorane, IN | 46725 | 260 |
| Luther, IN | 46787 | 260 |
| Ormas, IN | 46725 | 260 |
| Peabody, IN | 46725 | 260 |
| Raber, IN | 46725 | 260 |
| South Whitley, IN | 46787 | 260 |
| Thorncreek, IN | 46725 | 260 |
| Tri Lakes, IN | 46725 | 260 |
| Tunker, IN | 46787 | 260 |
| Wilson Lake, IN | 46725 | 260 |