Elmore County, Idaho

Elmore County: County in Idaho, United States


Elmore County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 27,038 and a population density of 3 people per km². After 9 years in 2019 county had an estimated population of 27,511 inhabitants. Its county seat is Mountain Home. The county was created 134 years ago in 1889.

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

Quick Facts about Elmore County

Population : 27,511 (2019)
Country : United States of America
State : Idaho (United States)
Different from : Elmore County
Area : 8030 km2
Water as percent of area : 0.8%
Land as percent of area : 99.2%
Capital : Mountain Home
Establishment : February 02, 1889
Time Zone : America/Boise
Local time : 04:11:00 (5th December 2023)
Density : 3 Pop. per km² as of 2019
Population growth : 1.72% (2010-2019)
Weather : 32℉ Slight Chance Light Rain then Mostly Cloudy 7-days weather
Elmore county courthouse 2009 image
Elmore county courthouse 2009
Elmore county courthouse 2009 image


Elmore County is located at 43°21'14"N 115°28'9"W (43.3539000, -115.4691800). It has 8 neighbors: Custer County, Ada County, Blaine County, Boise County, Camas County, Gooding County, Owyhee County and Twin Falls County.

Elmore County map

The largest city of Elmore County is Mountain Home with a population of 14,562. Other cities include and Glenns Ferry population 1,303. See all Elmore County cities & populated places.

Elmore County Populated Places

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

City Name Population Title
Mountain Home 14,562 City in Elmore, Idaho, United States
Glenns Ferry 1,303 City in Elmore County, Idaho, United States


Elmore County forecast: A slight chance of rain before 11pm. Mostly cloudy, with a low around 32. East wind around 8 mph. Chance of precipitation is 20%. more

Elmore County has 8 neighbours.

  • Mountain Home


The population of Elmore County increased by 1.72% in 9 years.

Year Population % Change Method
2010 27,038 - census
2011 26,221 -3.12% estimation process
2012 26,287 0.25% estimation process
2013 26,267 -0.08% estimation process
2014 26,226 -0.16% estimation process
2015 25,826 -1.55% estimation process
2016 26,137 1.19% estimation process
2017 26,881 2.77% estimation process
2018 27,362 1.76% estimation process
2019 27,511 0.54% estimation process

Comitatul Elmore, Comte d'Elmore, Comté d'Elmore, Condado de Elmore, Condado han Elmore, Contea di Elmore, Ehlmor, Elmor, Elmor srjan, Elmore, Elmore Kun, Elmore Kūn, Elmore konderria, Elmore megye, Elmorei maakond, Hrabstwo Elmore, Okrug Elmor, Quan Elmore, Quận Elmore, ai er mo er xian, elamora ka'unti, erumoa jun, mqatʿt almwr, shhrstan almwr aydahw, Елмор, Округ Елмор, Элмор, Էլմոր շրջան, المور کاؤنٹی، اڈاہو, ایلمور کاؤنٹی، ایڈاہو, شهرستان المور، آیداهو, مقاطعة إلمور, এলমোর কাউন্টি, エルモア郡, 埃爾莫爾縣

Other places with the same name (2)

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