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COUNTY · 2000 CENSUS

Columbia County

Washington · 4,064 residents · 868.585 sq mi
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The short version

Columbia County has lower-than-average household income, with a median household income of $33,500. Population has held roughly steady since 1990. Median home value has more than doubled since 1990, reaching $85,500. With a median age of 42.4, the population is older than the US median of 35.2. Households here earn about 27% less than the Washington median.

At a glance
Lower income
below the US median
US median: $42,589
Older
median age 42.4
US median: 35.2
Less educated
17% hold a bachelor's degree
US average: 24%
Less affordable
home values up 73%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

4,064
+1%since 1990
from 4,024 in 1990
1990 – 2025
5 / sq mi
+1%since 1990
from 5 / sq mi in 1990
US average: 242
42.4
+9%since 1990
from 38.8 in 1990
US average: 35.2
Population, 19902024
4K4K4K4K4K1990201020202024Columbia County
20244K
1990201020202024
Section 02

Income & economy

$33,500
+13%inflation adjusted, since 1990
from $22,418 in 1990
US average: $42,589
1990 – 2024
$17,374
+56%since 1990
from $11,108 in 1990
US average: $21,522
12.6%
−6.7 ptssince 1990
from 19.4% in 1990
US average: 12.4%
Section 03

Housing

$85,500
+73%inflation adjusted, since 1990
from $37,600 in 1990
US average: $120,530
1990 – 2024
$467
+28%inflation adjusted, since 1990
from $278 in 1990
US average: $602
69.4%
+1.8 ptssince 1990
from 67.6% in 1990
30.6% rent
2.6
+52%since 1990
from 1.7 in 1990
1990 – 2024
RELATED:See current rent listings in Columbia County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic96.3%(3,874)
Black0%(0)
Hispanic / Latino11.9%(479)
Asian0.1%(6)
Diversity Score30.9%(1,245)
2000
White, non-Hispanic90.7%(3,685)
Black0.2%(9)
Hispanic / Latino6.3%(258)
Asian0.4%(16)
Diversity Score16.7%(677)
17
−46%since 1990
from 31 in 1990
1990 – 2024
Section 05

Education

17.5%
+2.4 ptssince 1990
from 15.1% in 1990
US average: 24.4%
High school or higher
82.7%
+11.0 ptssince 1990
from 71.8% in 1990
US average: 80.3%
5.6%
+1.2 ptssince 1990
from 4.3% in 1990
US average: 8.8%
Section 06

Commute & transportation

15.1 min
−31%since 1990
from 21.9 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 Columbia County, Washington?

Columbia County, Washington has about 4,064 residents according to the 2000 Census.

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

The typical household in Columbia County, Washington earns about $33,500 a year. Half of households make more than that, and half make less.

Is Columbia County, Washington expensive?

In Columbia County, Washington, the median home is worth about $85,500, and the typical rent is about $467 a month.

How educated are people in Columbia County, Washington?

About 17.5% of adults age 25 and over in Columbia County, Washington hold a bachelor's degree or higher.

What is the poverty rate in Columbia County, Washington?

About 12.6% of people in Columbia County, Washington live below the federal poverty line.

Has Columbia County, Washington grown since 1990?

Yes, Columbia County, Washington has grown since 1990. The population has added about 40 residents, a change of about 1 percent over that period.

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

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