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COUNTY · 2000 CENSUS

Washington County

Idaho · 9,977 residents · 1,452.852 sq mi
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The short version

Washington County has notably lower household income than the US average, with a median household income of $30,625. Population has grown 17% since 1990. 13% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has more than doubled since 1990, reaching $91,800.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 39.2
US median: 35.2
Less educated
13% hold a bachelor's degree
US average: 24%
Less affordable
home values up 59%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

9,977
+17%since 1990
from 8,550 in 1990
1990 – 2025
7 / sq mi
+17%since 1990
from 6 / sq mi in 1990
US average: 242
39.2
+6%since 1990
from 37.0 in 1990
US average: 35.2
Population, 19902024
8K9K10K11K11K1990201020202024Washington County
202411K
1990201020202024
Section 02

Income & economy

$30,625
+30%inflation adjusted, since 1990
from $17,917 in 1990
US average: $42,589
1990 – 2024
$15,464
+70%since 1990
from $9,088 in 1990
US average: $21,522
13.3%
−6.3 ptssince 1990
from 19.6% in 1990
US average: 12.4%
Section 03

Housing

$91,800
+59%inflation adjusted, since 1990
from $43,700 in 1990
US average: $120,530
1990 – 2024
$457
+35%inflation adjusted, since 1990
from $256 in 1990
US average: $602
73.7%
+1.7 ptssince 1990
from 72.0% in 1990
26.3% rent
3.0
+23%since 1990
from 2.4 in 1990
1990 – 2024
RELATED:See current rent listings in Washington County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic89.7%(7,672)
Black0%(0)
Hispanic / Latino10.3%(883)
Asian2.1%(177)
Diversity Score40.5%(3,461)
2000
White, non-Hispanic83.1%(8,294)
Black0.1%(10)
Hispanic / Latino13.8%(1,372)
Asian1%(103)
Diversity Score32.6%(3,253)
33
−19%since 1990
from 40 in 1990
1990 – 2024
Section 05

Education

12.7%
+2.4 ptssince 1990
from 10.3% in 1990
US average: 24.4%
High school or higher
76.6%
+3.9 ptssince 1990
from 72.7% in 1990
US average: 80.3%
2.9%
−0.5 ptssince 1990
from 3.4% in 1990
US average: 8.8%
Section 06

Commute & transportation

15.8 min
−14%since 1990
from 18.3 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.

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Frequently asked

How many people live in Washington County, Idaho?

Washington County, Idaho has about 9,977 residents according to the 2000 Census.

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

The typical household in Washington County, Idaho earns about $30,625 a year. Half of households make more than that, and half make less.

Is Washington County, Idaho expensive?

In Washington County, Idaho, the median home is worth about $91,800, and the typical rent is about $457 a month.

How educated are people in Washington County, Idaho?

About 12.7% of adults age 25 and over in Washington County, Idaho hold a bachelor's degree or higher.

What is the poverty rate in Washington County, Idaho?

About 13.3% of people in Washington County, Idaho live below the federal poverty line.

Has Washington County, Idaho grown since 1990?

Yes, Washington County, Idaho has grown since 1990. The population has added about 1,427 residents, a change of about 17 percent over that period.

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

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