Lemhi County, Idaho
Lemhi County: County in Idaho, United States
About
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 156 years ago in 1869.
Quick Facts about Lemhi County
| 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 : | 10:36:30 (22nd February 2025) |
| Density : | 1 Pop. per km² as of 2019 |
| Population growth : | 1.13% (2010-2019) |
Geography
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
icon to open full mode. View satellite images
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 |
- Official Website
Official website of Lemhi County
Lemhi County has 7 neighbours.
- Custer County county in central Idaho, United States
- Butte County county in Idaho, United States
- Clark County county in Idaho, United States
- Idaho County county in Idaho, United States
- Valley County county in Idaho, United States
- Beaverhead County county in Montana, United States
- Ravalli County county in Montana, United States
- Salmon
Demographics
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 |
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 |
