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ZIP CODE TABULATION AREA

99113

Washington · 560 residents · 98.5 sq mi
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ZIP 99113 is home to 560 people in Whitman County. At a median age of 53.0, this is an older place than the country as a whole. Households here earn about 89% more than in Whitman County as a whole. 92% of homes are owner-occupied. There are 6 people per square mile. 50% of adults hold a bachelor's degree, against 36% nationally. Among the 20 ZIP codes in Whitman County, 99113 ranks 2nd by median household income.

$104,643
US average: $82,259
$53,436
US average: $44,673
$398,000
US average: $376,019
49.8%
US average: 35.6%
Land area
98.5 sq mi
Age, sex & households
Under 18
17.9%
Age 65+
27.0%
52.0%
48.0%
2.37 people
Race & ethnicity · 2024
2024
White, non-Hispanic89.3%(500)
Black2.7%(15)
Hispanic / Latino2.9%(16)
Asian0%(0)
Other5.2%(29)
25
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
3.8
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Whitman County
Income rank vs other ZIPs
LOWEST2ND OF 20HIGHEST
Adjacent ZIPs
99017$58,958
99033$58,750
99102$56,833
99111$73,393
Frequently asked

How many people live in ZIP code 99113?

ZIP code 99113 has about 560 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 99113?

The typical household in ZIP code 99113 earns about $104,643 a year. Half of households make more than that, and half make less.

Is ZIP code 99113 expensive?

In ZIP code 99113, the median home is worth about $398,000, and the typical rent is about $1,281 a month.

How educated are people in ZIP code 99113?

About 49.8% of adults age 25 and over in ZIP code 99113 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 99113?

About 2.1% of people in ZIP code 99113 live below the federal poverty line.

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