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Bannock County, Idaho facts for kids

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Bannock County
Bannock County Courthouse in Pocatello
Bannock County Courthouse in Pocatello
Official seal of Bannock County
Map of Idaho highlighting Bannock County
Location within the U.S. state of Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
Country  United States
State  Idaho
Founded March 6, 1893
Named for Bannock tribe
Seat Pocatello
Largest city Pocatello
 • Total 1,147 sq mi (2,970 km2)
 • Land 1,112 sq mi (2,880 km2)
 • Water 35 sq mi (90 km2)  3.1%
 • Total 87,018 Increase
 • Density 76/sq mi (29/km2)
Time zone UTC−7 (Mountain)
 • Summer (DST) UTC−6 (MDT)
Congressional district 2nd

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.


According to the U.S. Census Bureau, the county has a total area of 1,147 square miles (2,970 km2), of which 1,112 square miles (2,880 km2) is land and 35 square miles (91 km2) (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 9,271 feet (2825 m); on its western slopes is the Pebble Creek ski area.

Adjacent counties


National protected area

  • Caribou National Forest (part)


Historical population
Census Pop.
1900 11,702
1910 19,242 64.4%
1920 27,532 43.1%
1930 31,266 13.6%
1940 34,759 11.2%
1950 41,745 20.1%
1960 49,342 18.2%
1970 52,200 5.8%
1980 65,421 25.3%
1990 66,026 0.9%
2000 75,565 14.4%
2010 82,839 9.6%
2020 87,018 5.0%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020 2020

Bannock County is part of the Pocatello, Idaho Metropolitan Statistical Area.

2010 census

As of the 2010 United States Census, there were 82,839 people, 30,682 households, and 20,836 families in the county. The population density was 74.5 inhabitants per square mile (28.8/km2). There were 33,191 housing units at an average density of 29.8 per square mile (11.5/km2). The racial makeup of the county was 89.8% white, 3.2% American Indian, 1.3% Asian, 0.8% black or African American, 0.2% Pacific islander, 2.1% from other races, and 2.7% from two or more races. Those of Hispanic or Latino origin made up 6.7% of the population. In terms of ancestry, 23.4% were English, 16.9% were German, 9.3% were Irish, and 7.0% were American.

Of the 30,682 households, 35.5% had children under the age of 18 living with them, 52.2% were married couples living together, 10.7% had a female householder with no husband present, 32.1% were non-families, and 24.9% of all households were made up of individuals. The average household size was 2.64 and the average family size was 3.17. The median age was 31.4 years.

The median income for a household in the county was $44,848 and the median income for a family was $54,650. Males had a median income of $43,538 versus $28,870 for females. The per capita income for the county was $21,275. About 10.6% of families and 14.0% of the population were below the poverty line, including 16.6% of those under age 18 and 4.2% of those age 65 or over.



Census-designated places

Unincorporated communities

See also

Kids robot.svg In Spanish: Condado de Bannock para niños

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