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COUNTY · 1990 CENSUS

Lake County

Montana · 21,041 residents · 1,490 sq mi
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The short version

With 21,041 people, Lake County is a county in Montana. The poverty rate is 21.4%, above the 13.2% national rate. Median rent is $263 a month. The median household earns $19,755, about 34% below the national median. There are 5,466 fewer people here than in 2000. Median home value sits at $61,900.

At a glance
Lower income
below the US median
US median: $30,130
Mid-age
median age 34.7
US median: 33.0
Less educated
16% hold a bachelor's degree
US average: 20%
More affordable
home values down 33%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

21,041
−21%vs 2000
vs 26,507 in 2000
1990 – 2025
34.7
−9%vs 2000
vs 38.2 in 2000
US average: 33.0
Land area
1,490 sq mi
Population, 19902024
20K23K27K30K34K19902000201020202024Lake County
202433K
1990201020202024
Age distribution, 1990
Under 58%(1,675)
US avg: 7.3%
5 to 99%(1,884)
US avg: 7.3%
10 to 148.4%(1,768)
US avg: 6.9%
15 to 197.4%(1,564)
US avg: 7.1%
20 to 244.5%(956)
US avg: 7.5%
25 to 3413.2%(2,776)
US avg: 17.5%
35 to 4415%(3,149)
US avg: 15.1%
45 to 549.6%(2,010)
US avg: 10.2%
55 to 649.3%(1,960)
US avg: 8.5%
65 to 748.9%(1,865)
US avg: 7.3%
75 to 844.9%(1,041)
US avg: 4%
85 and over1.9%(393)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$19,755
−9%inflation adjusted, since 2000
vs $28,740 in 2000
US average: $30,130
1990 – 2024
$9,274
−39%vs 2000
vs $15,173 in 2000
US average: $14,340
21.4%
+2.7 ptsvs 2000
vs 18.7% in 2000
US average: 13.2%
Section 03

Housing

$61,900
−33%inflation adjusted, since 2000
vs $120,900 in 2000
US average: $93,722
1990 – 2024
$263
−14%inflation adjusted, since 2000
vs $403 in 2000
US average: $450
70.2%
−1.2 ptsvs 2000
vs 71.4% in 2000
29.8% rent
Section 04

Race & ethnicity

2000
White, non-Hispanic70.6%(18,704)
Black0.1%(30)
Hispanic / Latino2.5%(668)
Asian0.3%(69)
Other0%
1990
White, non-Hispanic78.3%(16,468)
Black0%(6)
Hispanic / Latino1.6%(334)
Asian0.1%(21)
Other21.6%(4,546)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican3.2%(1,046)
Spaniard0.3%(82)
Peruvian0.1%(44)
Ecuadorian0.1%(33)
Puerto Rican0.1%(29)
Dominican0.1%(28)
Cuban0%(7)
Asian origin
Filipino0.4%(115)
Japanese0.1%(35)
Asian Indian0.1%(29)
Sri Lankan0.1%(17)
Korean0%(15)
Chinese0%(7)
Pacific Islander origin
Samoan0%(7)
Tongan0%(5)
Fijian0%(5)
Ancestry
German17.1%(5,553)
English13.9%(4,540)
Irish11.1%(3,602)
Norwegian5.3%(1,725)
American5%(1,624)
Italian2.5%(801)
Scottish2.5%(801)
French2.4%(767)
Swedish2%(639)
Polish1.5%(495)
Danish1.3%(428)
Dutch1.3%(411)
+ 30 more ancestry groups with data
Scotch-Irish1.2%(401)
Russian0.6%(193)
British0.4%(140)
Arab0.4%(137)
Czech0.4%(136)
Lebanese0.4%(130)
Welsh0.4%(117)
Swiss0.3%(94)
Greek0.3%(83)
Australian0.2%(76)
Finnish0.2%(70)
Austrian0.2%(62)
Canadian0.2%(58)
Portuguese0.2%(50)
Slovak0.1%(38)
Belgian0.1%(26)
Iranian0.1%(20)
Ukrainian0.1%(19)
West Indian0.1%(19)
Croatian0%(14)
Haitian0%(10)
Serbian0%(8)
Latvian0%(3)
Section 05

Education

15.7%
−6.5 ptsvs 2000
vs 22.2% in 2000
US average: 20.3%
High school or higher
77.3%
−6.9 ptsvs 2000
vs 84.2% in 2000
US average: 75.2%
4.4%
−2.2 ptsvs 2000
vs 6.6% in 2000
US average: 7.1%
Section 06

Commute & transportation

24.2 min
+83%vs 2000
vs 13.2 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married32.2%(4,242)
Married52.3%(6,874)
Widowed4.1%(533)
Divorced11.4%(1,506)
Women 15+
Never married26.1%(3,564)
Married51.8%(7,067)
Widowed8.3%(1,134)
Divorced13.8%(1,887)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

14.5%
−11.8 ptssince 2013
from 26.3% in 2013
US average: 8.4%
35.0%
+0.8 ptssince 2020
from 34.2% in 2020
US average: 54.8%
Direct-purchase
16.6%
−1.6 ptssince 2020
from 18.2% in 2020
US average: 13.8%
25.8%
+1.3 ptssince 2020
from 24.5% in 2020
US average: 18.4%
24.8%
−4.3 ptssince 2020
from 29.1% in 2020
US average: 20.9%
VA health care
3.5%
−0.3 ptssince 2020
from 3.8% in 2020
US average: 2.2%
Any private
52.6%
−0.6 ptssince 2020
from 53.2% in 2020
US average: 67.1%
Any public
47.9%
−2.8 ptssince 2020
from 50.7% in 2020
US average: 36.7%

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, 2024
Gulf War (2001 or later)20.1%(485)
US avg: 26.4%
Gulf War (1990s)22.8%(551)
US avg: 24.3%
Vietnam era47.6%(1,152)
US avg: 33.1%
Korean War3.4%(83)
US avg: 4.5%
World War II1%(23)
US avg: 1%

Share of the 2,418 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.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked

How many people live in Lake County, Montana?

Lake County, Montana has about 21,041 residents according to the 1990 Census.

What is the median household income in Lake County, Montana?

The typical household in Lake County, Montana earns about $19,755 a year. Half of households make more than that, and half make less.

Is Lake County, Montana expensive?

In Lake County, Montana, the median home is worth about $61,900, and the typical rent is about $263 a month.

How educated are people in Lake County, Montana?

About 15.7% of adults age 25 and over in Lake County, Montana hold a bachelor's degree or higher.

What is the poverty rate in Lake County, Montana?

About 21.4% of people in Lake County, Montana live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →