Bannock County, Idaho

Bannock County: County in Idaho, United States

About

Bannock County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 82,839 and a population density of 28 people per km². After 9 years in 2019 county had an estimated population of 87,808 inhabitants. Its county seat is Pocatello. The county was created 132 years ago in 1893.

Bannock County locator map
Location of Bannock County on Idaho map.

Quick Facts about Bannock County

Population : 87,808 (2019)
Country : United States of America
State : Idaho (United States)
Area : 2972 km2
Water as percent of area : 3.1%
Land as percent of area : 96.9%
Named for : Bannock people
Altitude : 4,744 feet / 1446 meters
Capital : Pocatello
Establishment : March 03, 1893
Time Zone : America/Boise
Local time : 21:20:49 (4th December 2025)
Density : 30 Pop. per km² as of 2019
Population growth : 5.66% (2010-2019)
Bannock County Courthouse image
Bannock County Courthouse
Bannock County Courthouse image
Bannock County Courthouse image

Geography

Bannock County is located at 42°40'7"N 112°13'29"W (42.6685100, -112.2246300). It has 5 neighbors: Bingham County, Caribou County, Franklin County, Oneida County and Power County.

Bannock County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Bannock County is Pocatello with a population of 56,637. Other cities include, Chubbuck population 15,588, Inkom population 902, McCammon population 831 and Downey population 633. See all Bannock County cities & populated places.

Bannock County Populated Places

Cities, towns, neighborhoods & other populated places in Bannock County.

City Name Population Title
Pocatello 56,637 The most populous city in Bannock County, Idaho.
Chubbuck 15,588 City in Bannock County, Idaho, United States
Inkom 902 City in Bannock County, Idaho, United States
McCammon 831 City in Bannock County, Idaho, United States
Downey 633 City in Bannock County, Idaho, United States
Lava Hot Springs 432 City in Bannock County, Idaho, United States
Arimo 364 City in Bannock County, Idaho, United States
Cambridge 320 City in Idaho, United States

Bannock County has 5 neighbours.

  • Pocatello

Demographics

The population of Bannock County increased by 5.66% in 9 years.

Year Population % Change Method
2010 82,839 - census
2011 83,641 0.96% estimation process
2012 83,755 0.14% estimation process
2013 83,455 -0.36% estimation process
2014 83,536 0.1% estimation process
2015 84,184 0.77% estimation process
2016 84,676 0.58% estimation process
2017 85,482 0.94% estimation process
2018 86,674 1.38% estimation process
2019 87,808 1.29% estimation process

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People born in Bannock County (1)

American politician Randy Armstrong was born in Bannock County

Idaho Other Counties (more counties)

County Name Population Title
Ada County 481,587 County in Idaho, United States
Canyon County 229,849 County in Idaho, United States
Boise 228,959 The capital of Idaho.
Kootenai County 165,697 County in Idaho, United States
Bonneville County 119,062 County in Idaho, United States
Meridian 114,161 The most populous city in Ada County, Idaho.
Nampa 99,277 The most populous city in Canyon County, Idaho.
Twin Falls County 86,878 County in Idaho, United States
Idaho Falls 62,888 The most populous city in Bonneville County, Idaho.
Caldwell 58,481 The most populous city in Canyon County, Idaho.
Pocatello 56,637 The most populous city in Bannock County, Idaho.
Coeur d'Alene 52,414 A city in Kootenai County, Idaho.
Twin Falls 50,197 The most populous city in Twin Falls County, Idaho.
Bingham County 46,811 County in Idaho, United States
Bonner County 45,739 County in Idaho, United States
Nez Perce County 40,408 County in Idaho, United States