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ZIP CODE TABULATION AREA

99102

Washington · 495 residents · 0.341 sq mi
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ZIP 99102 has notably lower household income than the US average, with a median household income of $56,833. Population has held roughly steady since 2024. 45% of adults hold a bachelor's degree or higher. Median home value is $230,700. At a median age of 33.4, residents skew younger than the country as a whole. Among the 20 ZIP codes in Whitman County, 99102 ranks 14th by median household income.

$56,833
US average: $82,259
$230,700
US average: $376,019
45.1%
US average: 35.6%
Age, sex & households
Under 18
26.9%
Age 65+
17.4%
47.7%
52.3%
2.27 people
Race & ethnicity · 2024
2024
White, non-Hispanic95.6%(473)
Black0%(0)
Hispanic / Latino0%(0)
Asian0.8%(4)
Other3.6%(18)
Diversity Score10.7%(53)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within Whitman County
Income rank vs other ZIPs
LOWEST14TH OF 20HIGHEST
Adjacent ZIPs
99017$58,958
99033$58,750
99111$73,393
99113$104,643
Frequently asked

How many people live in ZIP code 99102?

ZIP code 99102 has about 495 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 99102?

The typical household in ZIP code 99102 earns about $56,833 a year. Half of households make more than that, and half make less.

Is ZIP code 99102 expensive?

In ZIP code 99102, the median home is worth about $230,700, and the typical rent is about $1,061 a month.

How educated are people in ZIP code 99102?

About 45.1% of adults age 25 and over in ZIP code 99102 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 99102?

About 6.5% of people in ZIP code 99102 live below the federal poverty line.

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