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COUNTY · 2000 CENSUS

Blaine County

Idaho · 18,991 residents · 2,638 sq mi
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The short version

With 18,991 people, Blaine County is a county in Idaho. Home values have more than doubled since 1990, reaching $266,500. 43% of adults hold a bachelor's degree, against 24% nationally. 5,439 more people live here than in 1990. That is roughly 34% ahead of the Idaho median. Poverty is uncommon here, at 7.8% of people here.

At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 37.4
US median: 35.2
More educated
43% hold a bachelor's degree
US average: 24%
Less affordable
home values up 69%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

18,991
+40%since 1990
from 13,552 in 1990
1990 – 2025
37.4
+12%since 1990
from 33.4 in 1990
US average: 35.2
Land area
2,638 sq mi
Population, 19902024
12K16K19K23K26K19902000201020202024Blaine County
202425K
1990201020202024
Age distribution, 2000
Under 55.9%(1,117)
US avg: 6.8%
5 to 96.6%(1,262)
US avg: 7.3%
10 to 147.4%(1,400)
US avg: 7.3%
15 to 196.2%(1,182)
US avg: 7.2%
20 to 245.6%(1,060)
US avg: 6.7%
25 to 3414.5%(2,753)
US avg: 14.2%
35 to 4418.1%(3,443)
US avg: 16%
45 to 5418.1%(3,429)
US avg: 13.4%
55 to 649.8%(1,863)
US avg: 8.6%
65 to 745%(947)
US avg: 6.5%
75 to 842.1%(399)
US avg: 4.4%
85 and over0.7%(136)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$50,496
+23%inflation adjusted, since 1990
from $31,199 in 1990
US average: $42,589
1990 – 2024
$31,346
+57%since 1990
from $19,979 in 1990
US average: $21,522
7.8%
+0.1 ptssince 1990
from 7.7% in 1990
US average: 12.4%
Section 03

Housing

$266,500
+69%inflation adjusted, since 1990
from $119,800 in 1990
US average: $120,530
1990 – 2024
$740
+18%inflation adjusted, since 1990
from $474 in 1990
US average: $602
68.9%
+4.7 ptssince 1990
from 64.2% in 1990
31.1% rent
Section 04

Race & ethnicity

1990
White, non-Hispanic97.6%(13,233)
Black0.1%(8)
Hispanic / Latino2.6%(347)
Asian1%(140)
2000
White, non-Hispanic87%(16,531)
Black0.1%(12)
Hispanic / Latino10.7%(2,030)
Asian0.6%(118)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin
Mexican17%(4,239)
Colombian1.2%(287)
Peruvian0.4%(101)
Guatemalan0.4%(93)
Puerto Rican0.3%(85)
Spaniard0.3%(73)
Chilean0.1%(17)
Asian origin
Filipino0.3%(83)
Chinese0.3%(64)
Pacific Islander origin
Ancestry
German17.5%(4,371)
English13.7%(3,410)
American10.7%(2,670)
Irish8.8%(2,205)
Italian4.5%(1,111)
Norwegian4.2%(1,059)
French2.2%(561)
Scottish2.2%(555)
Scotch-Irish1.8%(445)
Polish1.6%(405)
Swedish1.5%(374)
Dutch1.3%(312)
+ 28 more ancestry groups with data
Danish1.2%(301)
Swiss0.7%(179)
Austrian0.7%(166)
Finnish0.7%(164)
Czech0.6%(151)
British0.6%(138)
Canadian0.5%(124)
Welsh0.5%(116)
Greek0.4%(98)
Russian0.4%(93)
Australian0.3%(76)
Hungarian0.3%(73)
Ukrainian0.2%(56)
Brazilian0.2%(53)
Croatian0.2%(51)
Bulgarian0.2%(43)
Portuguese0.1%(25)
Romanian0.1%(20)
Kenyan0.1%(18)
Lithuanian0.1%(13)
Israeli0%(11)
Slovak0%(10)
Arab0%(7)
Turkish0%(5)
Belgian0%(4)
Section 05

Education

43.1%
+10.2 ptssince 1990
from 33.0% in 1990
US average: 24.4%
High school or higher
90.2%
−1.5 ptssince 1990
from 91.7% in 1990
US average: 80.3%
12.9%
+4.0 ptssince 1990
from 8.9% in 1990
US average: 8.8%
Section 06

Commute & transportation

12.9 min
−34%since 1990
from 19.6 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married30.6%(2,419)
Married57.7%(4,562)
Widowed1.3%(103)
Divorced10.4%(822)
Women 15+
Never married22.3%(1,627)
Married58.9%(4,298)
Widowed4.4%(324)
Divorced14.3%(1,043)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

9.0%
−9.4 ptssince 2013
from 18.4% in 2013
US average: 8.4%
44.7%
+0.5 ptssince 2020
from 44.2% in 2020
US average: 54.8%
Direct-purchase
28.2%
+8.3 ptssince 2020
from 19.9% in 2020
US average: 13.8%
23.6%
+4.9 ptssince 2020
from 18.7% in 2020
US average: 18.4%
11.8%
−3.6 ptssince 2020
from 15.4% in 2020
US average: 20.9%
VA health care
1.3%
+0.5 ptssince 2020
from 0.8% in 2020
US average: 2.2%
Any private
72.3%
+9.5 ptssince 2020
from 62.8% in 2020
US average: 67.1%
Any public
34.9%
+1.5 ptssince 2020
from 33.4% 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)20.5%(278)
US avg: 26.4%
Gulf War (1990s)18.8%(255)
US avg: 24.3%
Vietnam era45%(610)
US avg: 33.1%
Korean War4%(54)
US avg: 4.5%
World War II1.2%(16)
US avg: 1%

Share of the 1,357 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 Blaine County, Idaho?

Blaine County, Idaho has about 18,991 residents according to the 2000 Census.

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

The typical household in Blaine County, Idaho earns about $50,496 a year. Half of households make more than that, and half make less.

Is Blaine County, Idaho expensive?

In Blaine County, Idaho, the median home is worth about $266,500, and the typical rent is about $740 a month.

How educated are people in Blaine County, Idaho?

About 43.1% of adults age 25 and over in Blaine County, Idaho hold a bachelor's degree or higher.

What is the poverty rate in Blaine County, Idaho?

About 7.8% of people in Blaine County, Idaho live below the federal poverty line.

Has Blaine County, Idaho grown since 1990?

Yes, Blaine County, Idaho has grown since 1990. The population has added about 5,439 residents, a change of about 40 percent over that period.

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

How we source and harmonize this data →