United States › Idaho › Lemhi County COUNTY · 2020 ACS
Lemhi County Idaho · 7,974 residents · 4,564 sq mi
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The short version
Lemhi County is home to 7,974 people in Idaho. At a median age of 52.6, this is an older place than the country as a whole. Getting to work takes 12 minutes on average. 77% of homes are owner-occupied. That trails the Idaho median by roughly 34%. The foreign-born share is 2%.
At a glance
Lower income
below the US median
US median: $66,278
Older
median age 52.6
US median: 38.8
Less educated
23% hold a bachelor's degree
US average: 33%
Less affordable
home values up 40%, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 42.7 in 2000
US average: 38.8
Population, 1990 – 2024
7K 7K 8K 8K 8K 1990 2000 2010 2020 2024 Lemhi County Age distribution, 2020
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Section 02
Income & economy $38,819
−14%inflation adjusted, since 2000
from $30,185 in 2000
US average: $66,278
from $16,037 in 2000
US average: $35,364
Households earning $100K+
from 15.9% in 2009
US average: 43.9%
from 15.3% in 2000
US average: 12.8%
Workforce by industry, 2020
Agriculture, forestry, fishing 11.8%
Professional, scientific, technical 4.5%
Transportation & warehousing 1.8%
Public administration 1.4%
Arts, entertainment, food 0.8%
Education & health services 0%
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$192,100
+40%inflation adjusted, since 2000
from $91,300 in 2000
US average: $265,253
$627
+7%inflation adjusted, since 2000
from $390 in 2000
US average: $1,124
from 76.2% in 2000
23.1% rent
2.08 people
−11%since 2009
from 2.34 people in 2009
US average: 2.61
from 4.4 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 95.5%(7,452)
Hispanic / Latino 2.2%(170)
2020
White, non-Hispanic 91.3%(7,280)
Hispanic / Latino 3.7%(295)
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 20 more ancestry groups with data from 17.9% in 2000
US average: 32.9%
High school or higher
from 82.5% in 2000
US average: 88.5%
from 5.6% in 2000
US average: 12.7%
Section 06
Commute & transportation from 13.6 min in 2000
US average: 26.9
from 62.8% in 2009
US average: 75.1%
from 7.9% in 2009
US average: 8.4%
Section 07
Work & employment from 7.9% in 2011
US average: 5.4%
from 60.2% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 32.2% in 2009
US average: 39.3%
Section 08
People & community from 1.0% in 2009
US average: 13.5%
from 15.5% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 15.5% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 9%(84)
Gulf War (1990s) 10.7%(100)
Share of the 932 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Lemhi County Head to head
Compare Lemhi County to nearby counties LEMHI COUNTY VS
Custer County
Income $67,574 +74%
Home value $381,700 +99%
Population 4,636 −45%
SEE FULL COMPARISON →
LEMHI COUNTY VS
Beaverhead County
Income $61,268 +58%
Home value $308,300 +60%
Population 10,043 +19%
SEE FULL COMPARISON →
LEMHI COUNTY VS
Ravalli County
Income $71,283 +84%
Home value $476,600 +148%
Population 48,582 +473%
SEE FULL COMPARISON →
LEMHI COUNTY VS
Valley County
Income $76,078 +96%
Home value $657,000 +242%
Population 12,831 +51%
SEE FULL COMPARISON →
Frequently asked
How many people live in Lemhi County, Idaho? Lemhi County, Idaho has about 7,974 residents according to the 2020 American Community Survey.
What is the median household income in Lemhi County, Idaho? The typical household in Lemhi County, Idaho earns about $38,819 a year. Half of households make more than that, and half make less.
Is Lemhi County, Idaho expensive? In Lemhi County, Idaho, the median home is worth about $192,100, and the typical rent is about $627 a month.
How educated are people in Lemhi County, Idaho? About 23.4% of adults age 25 and over in Lemhi County, Idaho hold a bachelor's degree or higher.
What is the poverty rate in Lemhi County, Idaho? About 13.6% of people in Lemhi County, Idaho live below the federal poverty line.
Has Lemhi County, Idaho grown since 1990? Yes, Lemhi County, Idaho has grown since 1990. The population has added about 1,075 residents, a change of about 16 percent over that period.
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