Canyon County, Idaho

Canyon County: County in Idaho, United States

About

Canyon County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 188,923 and a population density of 121 people per km². After 9 years in 2019 county had an estimated population of 229,849 inhabitants. Its county seat is Caldwell. The county was created 133 years ago in 1891.

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

Quick Facts about Canyon County

Population : 229,849 (2019)
Country : United States of America
State : Idaho (United States)
Twitter username : canyonco
Area : 1563 km2
Water as percent of area : 2.7%
Land as percent of area : 97.3%
Altitude : 2,267 feet / 691 meters
Capital : Caldwell
Establishment : March 03, 1891
Time Zone : America/Boise
Local time : 01:33:04 (22nd February 2025)
Density : 147 Pop. per km² as of 2019
Population growth : 17.81% (2010-2019)
CanyonCounty image
CanyonCounty
CanyonCounty image
CanyonCounty image

Geography

Canyon County is located at 43°37'30"N 116°42'33"W (43.6251300, -116.7092900). It has 5 neighbors: Ada County, Gem County, Owyhee County, Payette County and Malheur County.

Canyon County map

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

The largest city of Canyon County is Nampa with a population of 99,277. Other cities include, Caldwell population 58,481, Middleton population 8,466, Parma population 2,147 and Wilder population 1,823. See all Canyon County cities & populated places.

Canyon County Populated Places

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

City Name Population Title
Nampa 99,277 The most populous city in Canyon County, Idaho.
Caldwell 58,481 The most populous city in Canyon County, Idaho.
Middleton 8,466 City in Canyon County, Idaho
Parma 2,147 Human settlement in Canyon County, Idaho, United States of America
Wilder 1,823 City in Idaho, USA
Greenleaf 886 City in Canyon County, Idaho, United States
Notus 638 City in Canyon County, Idaho, United States
Melba 558 City in Canyon County, Idaho, United States

Canyon County has 5 neighbours.

  • Caldwell

Demographics

The population of Canyon County increased by 17.81% in 9 years.

Year Population % Change Method
2010 188,923 - census
2011 191,354 1.27% estimation process
2012 193,734 1.23% estimation process
2013 198,590 2.45% estimation process
2014 202,440 1.9% estimation process
2015 206,842 2.13% estimation process
2016 211,381 2.15% estimation process
2017 216,858 2.53% estimation process
2018 223,236 2.86% estimation process
2019 229,849 2.88% estimation process

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Idaho Other Counties (more counties)

County Name Population Title
Ada County 481,587 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
Nez Perce County 40,408 County in Idaho, United States