Jefferson County Map, Idaho
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Jefferson County, Idaho
Jefferson County sits in eastern Idaho, just north of Idaho Falls. Farming is a major industry here. The Snake River Plain stretches out here, flat as a pancake. You’ll see a lot of potato fields around these parts.
Rigby, the county seat, claims to be the birthplace of television. Philo Farnsworth, TV’s inventor, grew up on a farm nearby. The Lemhi and Bitterroot mountain ranges loom in the distance.
The county is named after Thomas Jefferson, of course. People here value their independence. It’s a place where hard work and community still matter.
| Category | Details |
|---|---|
| County Name | Jefferson County |
| County Seat | Rigby |
| Population | 39,500 |
| Cities, Towns, and Communities | Rigby, Idaho Falls, Rexburg, and more |
| Interstates and Highways | U.S. Route 20, U.S. Route 26, Idaho State Highway 48 |
| FIPS Code | 16-051 |
| Total Area | 1,283 square miles (land: 1,276 sq mi; water: 7 sq mi) |
| Adjacent Counties | Clark County (North), Fremont County (Northeast), Madison County (East), Bonneville County (South), Bingham County (Southwest), Butte County (West) |
| Time Zone | Mountain Time Zone |
| State | Idaho |
| Coordinates | 43.8° N, 112.4° W |
| Etymology | Named in honor of President Thomas Jefferson. |
| Major Landmarks | Rexburg Rapids, Jefferson County Fairgrounds, and the Teton Dam site |
| Website | Jefferson County Website |
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