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ZIP CODE TABULATION AREA

98109

Washington · 34,328 residents · 1.94 sq mi
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ZIP 98109 is home to 34,328 people in King County. 79% of adults hold a bachelor's degree, against 36% nationally. Median home value sits at $1,034,100. 21% of homes are owner-occupied. 65% were living in the same home a year earlier. The median age is 31.7, younger than the US median of 38.9. Among the 80 ZIP codes in King County, 98109 ranks 36th by median household income.

$133,663
US average: $82,259
$117,676
US average: $44,673
$1,034,100
US average: $376,019
79.4%
US average: 35.6%
Land area
1.94 sq mi
Age, sex & households
Under 18
5.0%
Age 65+
7.7%
53.6%
46.4%
1.52 people
Race & ethnicity · 2024
2024
White, non-Hispanic48.6%(16,680)
Black3.9%(1,354)
Hispanic / Latino7.7%(2,645)
Asian31.6%(10,837)
Other8.2%(2,812)
81
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
7.7
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within King County
Income rank vs other ZIPs
LOWEST36TH 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 98109?

ZIP code 98109 has about 34,328 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 98109?

The typical household in ZIP code 98109 earns about $133,663 a year. Half of households make more than that, and half make less.

Is ZIP code 98109 expensive?

In ZIP code 98109, the median home is worth about $1,034,100, and the typical rent is about $2,343 a month.

How educated are people in ZIP code 98109?

About 79.4% of adults age 25 and over in ZIP code 98109 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 98109?

About 8.7% of people in ZIP code 98109 live below the federal poverty line.

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