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 : | 16:02:05 (5th December 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
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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 |
