Bannock County is a county in the southeastern part of Idaho. As of the 2020 census, the population was 87,018, making it the sixth-most populous county in Idaho. The county seat and largest city is Pocatello. The county was established in 1893 and named after the local Bannock tribe. It is one of the counties with territories included in the Fort Hall Indian Reservation of the federally recognized Shoshone-Bannock Tribes.
The county would get international attention in 2006 when the murder of Cassie Jo Stoddart occurred in a home located in the area.
Geography
According to the United States Census Bureau, the county has a total area of , of which is land and (3.1%) is water. The Portneuf River flows through the county, meeting the Snake River (the American Falls Reservoir) at the county's lowest point, its northwestern corner. Bonneville Peak, on the eastern border in the Portneuf Range, is the county's highest point at ASL; on its western slopes is the Pebble Creek ski area.
Adjacent counties
- Bingham County - north
- Caribou County - east
- Franklin County - southeast
- Oneida County - southwest
- Power County - west
Highways
- 25px - Interstate 15
- 25px - Interstate 86
- 25px - US 30
- 25px - US 91
- 25px - SH-40
National protected area
- Caribou National Forest (part)