Minidoka County, Idaho

Minidoka County: County in Idaho, United States

About

Minidoka County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 20,069 and a population density of 10 people per km². After 9 years in 2019 county had an estimated population of 21,039 inhabitants. Its county seat is Rupert. The county was created 112 years ago in 1913.

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

Quick Facts about Minidoka County

Population : 21,039 (2019)
Country : United States of America
State : Idaho (United States)
Area : 1976 km2
Water as percent of area : 0.7%
Land as percent of area : 99.3%
Altitude : 4,662 feet / 1421 meters
Capital : Rupert
Establishment : January 01, 1913
Time Zone : America/Boise
Local time : 09:58:24 (5th December 2025)
Density : 11 Pop. per km² as of 2019
Population growth : 4.61% (2010-2019)
Minidoka County Courthouse Rupert Idaho image
Minidoka County Courthouse Rupert Idaho
Minidoka County Courthouse Rupert Idaho image
Minidoka County Courthouse Rupert Idaho image

Geography

Minidoka County is located at 42°51'16"N 113°38'15"W (42.8544000, -113.6375200). It has 3 neighbors: Blaine County, Cassia County and Jerome County.

Minidoka County map

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

The largest city of Minidoka County is Rupert with a population of 5,893. Other cities include, Heyburn population 3,447, Paul population 1,449, Acequia population 133 and Minidoka population 113. See all Minidoka County cities & populated places.

Minidoka County Populated Places

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

City Name Population Title
Rupert 5,893 City in Minidoka County, Idaho, United States
Heyburn 3,447 City in Minidoka County, Idaho, United States
Paul 1,449 City in Idaho, United States
Acequia 133 City in Minidoka County, Idaho, United States
Minidoka 113 City in Idaho

Minidoka County has 3 neighbours.

  • Rupert

Demographics

The population of Minidoka County increased by 4.61% in 9 years.

Year Population % Change Method
2010 20,069 - census
2011 20,207 0.68% estimation process
2012 20,152 -0.27% estimation process
2013 20,400 1.22% estimation process
2014 20,339 -0.3% estimation process
2015 20,430 0.45% estimation process
2016 20,613 0.89% estimation process
2017 20,722 0.53% estimation process
2018 20,719 -0.01% estimation process
2019 21,039 1.52% estimation process

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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.
Bannock County 87,808 County in Idaho, United States
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