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COUNTY

Lemhi County

Idaho · 8,474 residents (2025 est.) · 4,563.695 sq mi
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The short version

Lemhi County has notably lower household income than the US average, with a median household income of $53,202. Population has held roughly steady since 2000. Median home value has more than tripled since 2000, reaching $326,100. With a median age of 53.3, the population is older than the US median of 38.9. Households here earn about 32% less than the Idaho median.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 53.3
US median: 38.9
Less educated
24% hold a bachelor's degree
US average: 36%
Less affordable
home values up 96%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
8,249
+6%since 2000
from 7,806 in 2000
1990 – 2025
Population density
2 / sq mi
+6%since 2009
from 2 / sq mi in 2009
US average: 281
Median age
53.3
+25%since 2000
from 42.7 in 2000
US average: 38.9

PEP 2025 EST:8,474 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
7K7K8K8K8K1990201020202024Lemhi County
20248K
1990201020202024
Age distribution, 2024
Under 54%(333)
US avg: 5.6%
5 to 93.3%(271)
US avg: 6%
10 to 146.4%(530)
US avg: 6.4%
15 to 196.5%(540)
US avg: 6.6%
20 to 245.3%(436)
US avg: 6.5%
25 to 345.3%(437)
US avg: 13.7%
35 to 4412%(993)
US avg: 13.2%
45 to 549.6%(796)
US avg: 12.2%
55 to 6416.5%(1,363)
US avg: 12.7%
65 to 7418.3%(1,509)
US avg: 10.2%
75 to 849.3%(765)
US avg: 5.1%
85 and over3.3%(276)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$53,202
−3%inflation adjusted, since 2000
from $30,185 in 2000
US average: $82,259
1990 – 2024
Per capita income
$34,545
+115%since 2000
from $16,037 in 2000
US average: $44,673
Households earning $100K+
34.1%
+18.2 ptssince 2009
from 15.9% in 2009
US average: 53.3%
Poverty rate
12.8%
−2.5 ptssince 2000
from 15.3% in 2000
US average: 12.5%
Income inequality (Gini)
0.495
+10%since 2010
from 0.449 in 2010
US average: 0.476
Workforce by industry, 2024
Information15.1%
US avg: 10.8%
Agriculture, forestry, fishing11.5%
US avg: 1.6%
Construction11%
US avg: 1.2%
Wholesale trade9.7%
US avg: 6.9%
Retail trade7.5%
US avg: 9.9%
Finance & insurance5.4%
US avg: 5.9%
Professional, scientific, technical3.7%
US avg: 5.1%
Other services3.1%
US avg: 6.7%
Public administration2.6%
US avg: 4.8%
Education & health services1.7%
US avg: 0.9%
Arts, entertainment, food1%
US avg: 1.9%
Transportation & warehousing0.5%
US avg: 2.2%
Manufacturing0.4%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$326,100
+96%inflation adjusted, since 2000
from $91,300 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$754
+6%inflation adjusted, since 2000
from $390 in 2000
US average: $1,442
Owner-occupied
79.3%
+3.1 ptssince 2000
from 76.2% in 2000
20.7% rent
Vacancy rate
26.0%
+0.6 ptssince 2009
from 25.4% in 2009
US average: 10.0%
Owner cost-burdened
25.8%
+4.5 ptssince 2009
from 21.3% in 2009
US average: 22.9%
Renter cost-burdened
44.2%
+11.4 ptssince 2009
from 32.8% in 2009
US average: 47.4%
Afford Score
6.1
+39%since 2009
from 4.4 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
Gentrification Score
37
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Lemhi County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic95.5%(7,452)
Black0.1%(8)
Hispanic / Latino2.2%(170)
Asian0.2%(14)
Other0%
2024
White, non-Hispanic91.5%(7,544)
Black0.1%(8)
Hispanic / Latino3.9%(324)
Asian0%(3)
Other4.5%(370)
Diversity Score
20
+44%since 2009
from 14 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
7
−69%since 2020
from 22 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican2.4%(195)
Chilean0.2%(15)
Asian origin
Filipino0.1%(10)
Chinese0%(3)
Pacific Islander origin
Tongan0%(4)
Ancestry
English20.7%(1,705)
German19.7%(1,628)
Irish13.9%(1,146)
American5.1%(420)
French4.4%(363)
Swedish4.2%(349)
Italian3.2%(261)
Norwegian2.5%(205)
Scottish2.4%(194)
Scotch-Irish2.1%(177)
Danish1.3%(108)
Dutch1.3%(104)
+ 19 more ancestry groups with data
Russian1.1%(87)
Welsh0.9%(78)
Polish0.5%(43)
Canadian0.4%(33)
Portuguese0.3%(24)
Swiss0.3%(24)
Hungarian0.3%(23)
Greek0.2%(18)
British0.2%(17)
Czech0.2%(17)
Belgian0.2%(16)
Croatian0.2%(13)
Serbian0.2%(13)
Arab0.1%(12)
Lebanese0.1%(12)
Finnish0.1%(12)
Austrian0.1%(11)
Lithuanian0.1%(9)
RANKED:Largest English population · Largest German population · Largest Irish population · Largest American population · Largest French population
Section 05

Education

Bachelor's degree or higher
24.1%
+6.2 ptssince 2000
from 17.9% in 2000
US average: 35.6%
High school or higher
90.8%
+8.3 ptssince 2000
from 82.5% in 2000
US average: 89.6%
Graduate degree
8.6%
+3.0 ptssince 2000
from 5.6% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
15.5 min
+14%since 2000
from 13.6 min in 2000
US average: 26.5
Drive alone to work
70.1%
+7.3 ptssince 2009
from 62.8% in 2009
US average: 68.9%
Carpooled to work
10.5%
−6.7 ptssince 2009
from 17.2% in 2009
US average: 8.5%
Public transit
0.0%
−0.3 ptssince 2009
from 0.3% in 2009
US average: 3.2%
Worked from home
11.8%
+4.3 ptssince 2009
from 7.5% in 2009
US average: 15.0%
Walked to work
6.6%
−3.3 ptssince 2009
from 9.8% in 2009
US average: 2.4%
Biked to work
0.8%
−0.3 ptssince 2009
from 1.1% in 2009
US average: 0.4%
No vehicle available
5.4%
−2.6 ptssince 2009
from 7.9% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
2.0%
−5.9 ptssince 2011
from 7.9% in 2011
US average: 5.2%
Labor force participation
52.8%
−7.4 ptssince 2011
from 60.2% in 2011
US average: 63.5%
Self-employed
8.8%
−1.8 ptssince 2009
from 10.5% in 2009
US average: 13.1%
Management & professional
32.1%
−35.9 ptssince 2009
from 68.1% in 2009
US average: 42.5%
Section 08

People & community

Male
50.9%
+1.6 ptssince 2009
from 49.3% in 2009
Female
49.1%
−1.6 ptssince 2009
from 50.7% in 2009
Foreign born
0.6%
−0.5 ptssince 2009
from 1.0% in 2009
US average: 14.1%
Veterans
8.4%
−40.8 ptssince 2009
from 49.3% in 2009
US average: 6.2%
With a disability
23.7%
+6.8 ptssince 2012
from 16.9% in 2012
US average: 13.3%
Uninsured
6.1%
−78.4 ptssince 2013
from 84.5% in 2013
US average: 8.4%
Broadband at home
88.8%
+15.7 ptssince 2017
from 73.1% in 2017
US average: 91.0%
English only at home
97.6%
+0.2 ptssince 2016
from 97.4% in 2016
US average: 77.7%
Spanish at home
1.9%
+0.4 ptssince 2016
from 1.5% in 2016
US average: 13.6%
Marital status
Men 15+
Never married22.8%(819)
Married55.7%(2,003)
Widowed4.1%(148)
Divorced17.5%(628)
Women 15+
Never married17.3%(610)
Married45.7%(1,607)
Widowed14.9%(524)
Divorced22.1%(776)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

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Head to head

Compare Lemhi County to nearby counties

LEMHI COUNTY VS
Custer County
Income$67,574+27%
Home value$381,700+17%
Population4,636−45%
SEE FULL COMPARISON →
LEMHI COUNTY VS
Beaverhead County
Income$61,268+15%
Home value$308,300−5%
Population10,043+19%
SEE FULL COMPARISON →
LEMHI COUNTY VS
Ravalli County
Income$71,283+34%
Home value$476,600+46%
Population48,582+473%
SEE FULL COMPARISON →
LEMHI COUNTY VS
Valley County
Income$76,078+43%
Home value$657,000+101%
Population12,831+51%
SEE FULL COMPARISON →
Frequently asked

How many people live in Lemhi County, Idaho?

Lemhi County, Idaho has about 8,249 residents according to the 2024 American Community Survey.

What is the median household income in Lemhi County, Idaho?

The typical household in Lemhi County, Idaho earns about $53,202 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 $326,100, and the typical rent is about $754 a month.

How educated are people in Lemhi County, Idaho?

About 24.1% 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 12.8% 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 1,350 residents, a change of about 20 percent over that period.

Keep going

Explore from here

3 census tracts
Census Tract 9701Census Tract 9703Census Tract 9702
9 ZIP codes
ZIP 83467ZIP 83462ZIP 83464ZIP 83466ZIP 83468ZIP 83253ZIP 83465ZIP 83463ZIP 83469
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →