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ZIP CODE TABULATION AREA

98121

Washington · 21,166 residents · 0.444 sq mi
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ZIP 98121 is significantly wealthier than the US average, with a median household income of $152,019. Population has held roughly steady since 2024. 79% of adults hold a bachelor's degree or higher, well above the national rate of 36%. Median home value is $848,400. At a median age of 33.2, residents skew younger than the country as a whole. Among the 80 ZIP codes in King County, 98121 ranks 28th by median household income.

$152,019
US average: $82,259
$848,400
US average: $376,019
78.9%
US average: 35.6%
Age, sex & households
Under 18
1.9%
Age 65+
10.6%
54.4%
45.6%
1.44 people
Race & ethnicity · 2024
2024
White, non-Hispanic45%(9,524)
Black4%(850)
Hispanic / Latino6.6%(1,394)
Asian36.6%(7,739)
Other7.8%(1,659)
Diversity Score81.5%(17,244)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within King County
Income rank vs other ZIPs
LOWEST28TH OF 80HIGHEST
Adjacent ZIPs
98001$106,791
98002$78,684
98003$75,319
98004$182,545
Frequently asked

How many people live in ZIP code 98121?

ZIP code 98121 has about 21,166 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 98121?

The typical household in ZIP code 98121 earns about $152,019 a year. Half of households make more than that, and half make less.

Is ZIP code 98121 expensive?

In ZIP code 98121, the median home is worth about $848,400, and the typical rent is about $2,337 a month.

How educated are people in ZIP code 98121?

About 78.9% of adults age 25 and over in ZIP code 98121 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 98121?

About 8.7% of people in ZIP code 98121 live below the federal poverty line.

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