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ZIP CODE TABULATION AREA

99328

Washington · 3,646 residents · 657 sq mi
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With 3,646 people, ZIP 99328 is a ZIP code in Columbia County. At a median age of 49.3, this is an older place than the country as a whole. There are 6 people per square mile. 24% of adults hold a bachelor's degree or higher. 77% of homes are owner-occupied. The foreign-born share is 6%.

$72,756
US average: $82,259
$40,778
US average: $44,673
$272,100
US average: $376,019
24.0%
US average: 35.6%
Land area
657 sq mi
Age, sex & households
Under 18
17.6%
Age 65+
29.6%
49.9%
50.1%
2.15 people
Race & ethnicity · 2024
2024
White, non-Hispanic80.4%(2,931)
Black0.6%(22)
Hispanic / Latino9.1%(332)
Asian2.1%(75)
Other7.8%(286)
42
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.7
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Columbia County
Income rank vs other ZIPs
LOWEST1ST OF 2HIGHEST
Adjacent ZIPs
99359$61,000
Frequently asked

How many people live in ZIP code 99328?

ZIP code 99328 has about 3,646 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 99328?

The typical household in ZIP code 99328 earns about $72,756 a year. Half of households make more than that, and half make less.

Is ZIP code 99328 expensive?

In ZIP code 99328, the median home is worth about $272,100, and the typical rent is about $982 a month.

How educated are people in ZIP code 99328?

About 24.0% of adults age 25 and over in ZIP code 99328 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 99328?

About 9.6% of people in ZIP code 99328 live below the federal poverty line.

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Containing area
Columbia County
Other ZIP codes in Columbia County
ZIP 99359

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