Lemhi County , Idaho

Lemhi County: County in Idaho, United States


Lemhi County is a county located in the U.S. state of Idaho. As of the 2010 census, the population was 7,936 and a population density of 1 people per km². After 9 years in 2019 county had an estimated population of 8,027 inhabitants. Its county seat is Salmon. The county was created 153 years ago in 1869.

Lemhi County Quick Facts

Population : 8,027 (2019)
Country : United States of America
State : Idaho (United States)
Area : 11835 km2
Water as percent of area : 0.1%
Land as percent of area : 99.9%
Named for : Fort Lemhi
Altitude : 7,096 feet / 2163 meters
Capital : Salmon
Establishment : January 01, 1869
Time Zone : America/Boise
Local time : 21:29:30 (28th May 2022)
Density : 1 Pop. per km² as of 2019
Population growth : 1.13% (2010-2019)
Lemhi County locator map
Location of Lemhi County on Idaho map.
Lemhi County Courthouse 1 image
Lemhi County Courthouse 1
Lemhi County Courthouse 1 image


Lemhi County is located at 44°56'36"N 113°55'60"W (44.9433100, -113.9332400). It has 7 neighbors: Custer County, Butte County, Clark County, Idaho County, Valley County, Beaverhead County and Ravalli County.

Lemhi County map

The largest city of Lemhi County is Salmon with a population of 3,169. Other cities include and Leadore population 106. See all Lemhi County cities & populated places.

Lemhi County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Lemhi County.

City Name Population Title
Salmon 3,169 City in Lemhi County, Idaho, United States
Leadore 106 City in Idaho, United States

Lemhi County has 7 neighbours.

  • Salmon


The population of Lemhi County increased by 1.13% in 9 years.

Year Population % Change Method
2010 7,936 - census
2011 7,986 0.63% estimation process
2012 7,768 -2.81% estimation process
2013 7,716 -0.67% estimation process
2014 7,724 0.1% estimation process
2015 7,737 0.17% estimation process
2016 7,709 -0.36% estimation process
2017 7,829 1.53% estimation process
2018 7,932 1.3% estimation process
2019 8,027 1.18% estimation process

Comitatul Lemhi, Comte de Lemhi, Comté de Lemhi, Condado de Lemhi, Condado han Lemhi, Contea di Lemhi, Hrabstwo Lemhi, Lemgaj, Lemhay srjan, Lemhi, Lemhi Kun, Lemhi Kūn, Lemhi konderria, Lemhi megye, Lemkhaj, Limi, Okrug Lemkhaj, Quan Lemhi, Quận Lemhi, lai mu ha yi xian, lemahi ka'unti, mqatʿt lymhy, remuhi jun, shhrstan lmy aydahw, Лемгай, Лемхай, Лими, Округ Лемхај, Լեմհայ շրջան, شهرستان لمی، آیداهو, لیمہی کاؤنٹی، اڈاہو, لیمی کاؤنٹی، ایڈاہو, مقاطعة ليمهي, লেমহি কাউন্টি, レムヒ郡, 萊姆哈伊縣

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 City in and state capital of Idaho, United States
Kootenai County 165,697 County in Idaho, United States
Bonneville County 119,062 County in Idaho, United States
Meridian 114,161 City in Ada County, Idaho, United States
Nampa 99,277 City in Canyon County, Idaho, United States
Bannock County 87,808 County in Idaho, United States
Twin Falls County 86,878 County in Idaho, United States
Idaho Falls 62,888 City in and the county seat of Bonneville County, Idaho, United States
Caldwell 58,481 City in and county seat of Canyon County, Idaho, United States
Pocatello 56,637 City in Idaho
Coeur d'Alene 52,414 City in Idaho, United States
Twin Falls 50,197 City in Twin Falls County, Idaho, United States
Bingham County 46,811 County in Idaho, United States
Bonner County 45,739 County in Idaho, United States