Jefferson County, Idaho
Jefferson County | |
|---|---|
Entering Jefferson County in Grant, Idaho | |
Location within the U.S. state of Idaho | |
Idaho's location within the U.S. | |
| Coordinates: 43°49′N 112°19′W / 43.82°N 112.31°W | |
| Country | United States |
| State | Idaho |
| Founded | February 18, 1913 |
| Named after | Thomas Jefferson |
| Seat | Rigby |
| Largest city | Rigby |
| Area | |
• Total | 1,106 sq mi (2,860 km2) |
| • Land | 1,094 sq mi (2,830 km2) |
| • Water | 12 sq mi (30 km2) 1.1% |
| Population (2020) | |
• Total | 30,891 |
• Estimate (2024) | 34,854 |
| • Density | 28/sq mi (11/km2) |
| Time zone | UTC−7 (Mountain) |
| • Summer (DST) | UTC−6 (MDT) |
| Congressional district | 2nd |
| Website | www |
Jefferson County is a county located in the U.S. state of Idaho. As of the 2020 Census, the county's population was 30,891. The county seat and largest city is Rigby. The county was established in 1913 and named after Thomas Jefferson, the third U.S. President. Jefferson County is part of the Idaho Falls, ID Metropolitan Statistical Area.