Bannock County, Idaho

Bannock County
Bannock County Courthouse in Pocatello
Location within the U.S. state of Idaho
Idaho's location within the U.S.
Coordinates: 42°40′N 112°13′W / 42.67°N 112.22°W / 42.67; -112.22
Country United States
State Idaho
FoundedMarch 6, 1893
Named afterBannock tribe
SeatPocatello
Largest cityPocatello
Area
  Total
1,147 sq mi (2,970 km2)
  Land1,112 sq mi (2,880 km2)
  Water35 sq mi (90 km2)  3.1%
Population
 (2020)
  Total
87,018
  Estimate 
(2024)
91,010
  Density76/sq mi (29/km2)
Time zoneUTC−7 (Mountain)
  Summer (DST)UTC−6 (MDT)
Congressional district2nd
Websitewww.bannockcounty.us

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.