Founded on Feb 7, 1836, Adams County is one of 92 counties in the state of Indiana. Historically, Adams County was formed from Adams New Purchase. The city of Decatur is the county seat. With FIPS code of 1, Adams County has a population of 35,961 and area of 339 square miles (878 km2).
List of all cities in Adams County, IN alphabetically
| City/Town | Postal Code | Area Code |
| Barrington Woods, IN | 46733 | 260 |
| Berne, IN | 46711 | 260 |
| 46769 | 260 | |
| Bo Bo, IN | 46733 | 260 |
| Ceylon, IN | 46740 | 260 |
| Coppess Corner, IN | 46772 | 260 |
| Decatur, IN | 46733 | 260 |
| Geneva, IN | 46740 | 260 |
| Hondorus, IN | 46733 | 260 |
| Linn Grove, IN | 46711 | 260 |
| 46769 | 260 | |
| Monroe, IN | 46772 | 260 |
| Peterson, IN | 46733 | 260 |
| Pleasant Mills, IN | 46780 | 260 |
| Preble, IN | 46782 | 260 |
| Sunny Acres, IN | 46733 | 260 |
| Yost Woods, IN | 46733 | 260 |