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ZIP CODE TABULATION AREA

99179

Washington · 645 residents · 65.274 sq mi
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ZIP 99179 has roughly average household income, with a median household income of $79,063. Population has held roughly steady since 2024. Median home value is $397,700. At a median age of 33.6, residents skew younger than the country as a whole. Poverty is rare here, at 4.5% of residents. Households here earn about 43% more than the Whitman County median. Among the 20 ZIP codes in Whitman County, 99179 ranks 7th by median household income.

$79,063
US average: $82,259
$397,700
US average: $376,019
37.6%
US average: 35.6%
Age, sex & households
Under 18
35.2%
Age 65+
11.6%
40.8%
59.2%
2.91 people
Race & ethnicity · 2024
2024
White, non-Hispanic91%(587)
Black0.6%(4)
Hispanic / Latino1.2%(8)
Asian3.4%(22)
Other3.7%(24)
Diversity Score21.1%(136)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Whitman County
Income rank vs other ZIPs
LOWEST7TH OF 20HIGHEST
Adjacent ZIPs
99017$58,958
99033$58,750
99102$56,833
99111$73,393
Frequently asked

How many people live in ZIP code 99179?

ZIP code 99179 has about 645 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 99179?

The typical household in ZIP code 99179 earns about $79,063 a year. Half of households make more than that, and half make less.

Is ZIP code 99179 expensive?

In ZIP code 99179, the median home is worth about $397,700, and the typical rent is about $1,675 a month.

How educated are people in ZIP code 99179?

About 37.6% of adults age 25 and over in ZIP code 99179 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 99179?

About 4.5% of people in ZIP code 99179 live below the federal poverty line.

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