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ZIP CODE TABULATION AREA

98198

Washington · 40,463 residents · 7.73 sq mi
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ZIP 98198 is home to 40,463 people in King County. The foreign-born share is 30%. Density works out to 5,237 people per square mile. Median home value sits at $589,500. That trails the King County median by roughly 31%. 55% of homes are owner-occupied. Among the 80 ZIP codes in King County, 98198 ranks 70th by median household income.

Population
40,463
Median income
$86,239
US average: $82,259
Per capita income
$41,819
US average: $44,673
Median home value
$589,500
US average: $376,019
Bachelor's+
30.8%
US average: 35.6%
Land area
7.73 sq mi
Age, sex & households
Median age
36.1
Under 18
22.3%
Age 65+
15.8%
Male
50.1%
Female
49.9%
Avg household
2.67 people
Race & ethnicity · 2024
2024
White, non-Hispanic38.8%(15,690)
Black14.1%(5,719)
Hispanic / Latino22.5%(9,084)
Asian13.7%(5,538)
Other11%(4,432)
Diversity Score
94
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
Owner-occupied
54.8%
Renter-occupied
45.2%
Median gross rent
$1,814
Median year built
1976
Afford Score
6.8
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
LOWEST70TH 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 98198?

ZIP code 98198 has about 40,463 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 98198?

The typical household in ZIP code 98198 earns about $86,239 a year. Half of households make more than that, and half make less.

Is ZIP code 98198 expensive?

In ZIP code 98198, the median home is worth about $589,500, and the typical rent is about $1,814 a month.

How educated are people in ZIP code 98198?

About 30.8% of adults age 25 and over in ZIP code 98198 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 98198?

About 12.9% of people in ZIP code 98198 live below the federal poverty line.

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Containing area
King County

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