county in Indiana, United States From Wikipedia, the free encyclopedia
Jefferson County is a county in the U.S. state of Indiana. As of 2020, 33,147 people lived there.[1] The county seat is Madison.[2]
Jefferson County | |
|---|---|
.jpg) Jefferson County Courthouse in Madison | |
 Location within the U.S. state of Indiana | |
 Indiana's location within the U.S. | |
| Coordinates: 38°47′N 85°26′W | |
| Country |  United States |
| State |  Indiana |
| Founded | 1811 |
| Named for | Thomas Jefferson |
| Seat | Madison |
| Largest city | Madison |
| Area | |
| • Total | 362.89 sq mi (939.9 km2) |
| • Land | 360.63 sq mi (934.0 km2) |
| • Water | 2.26 sq mi (5.9 km2) 0.62% |
| Population | |
| • Total | 33,147 |
| • Density | 89/sq mi (34/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 6th |
| Website | jeffersoncounty |
| Indiana county number 39 | |
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