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ZIP CODE TABULATION AREA

98166

Washington · 22,082 residents · 5.776 sq mi
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ZIP 98166 is significantly wealthier than the US average, with a median household income of $114,969. Population has held roughly steady since 2024. 47% of adults hold a bachelor's degree or higher. Median home value is $824,400. Among the 80 ZIP codes in King County, 98166 ranks 52nd by median household income.

$114,969
US average: $82,259
$824,400
US average: $376,019
46.9%
US average: 35.6%
Age, sex & households
Under 18
18.4%
Age 65+
20.5%
51.6%
48.4%
2.45 people
Race & ethnicity · 2024
2024
White, non-Hispanic66.8%(14,747)
Black2.1%(470)
Hispanic / Latino14.7%(3,239)
Asian6.6%(1,448)
Other9.9%(2,178)
Diversity Score64.8%(14,298)
Housing
Commute & vehicles
Work & employment
People & community
Affordability & inequality
Within King County
Income rank vs other ZIPs
LOWEST52ND 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 98166?

ZIP code 98166 has about 22,082 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 98166?

The typical household in ZIP code 98166 earns about $114,969 a year. Half of households make more than that, and half make less.

Is ZIP code 98166 expensive?

In ZIP code 98166, the median home is worth about $824,400, and the typical rent is about $1,782 a month.

How educated are people in ZIP code 98166?

About 46.9% of adults age 25 and over in ZIP code 98166 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 98166?

About 10.1% of people in ZIP code 98166 live below the federal poverty line.

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