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zipcodes.pro — STATE/WA/COUNTY/ASOTIN

Asotin County, WA ZIP codes

Asotin County, WA has 3 ZIP codes, in 3 towns: 99403, 99402 and 99401.

The county seat is Asotin.

ZIP codes
3
Towns
3
County seat
Asotin
County FIPS
53003
Population
22,467
Median household income
$72,283
Land area
636 sq mi
Metro area
Lewiston

Asotin County ZIP codes by town

Asotin (county seat)
99402

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Asotin County ZIP codes

994019940299403

The ZIP codes of Asotin County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Asotin County in numbers

About 22,467 people live in Asotin County, in 9,490 households, the 30th most populous of Washington's 39 counties. The median household income is $72,283 a year, 26% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $325,600 (42% below the Washington median), and median gross rent is $1,043 a month. The median age is 46.2; 24.7% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 15 minutes.

Population22,467Asotin22,467
Households9,490Asotin9,490
Median age46.2Asotin46.2Washington38.3US 38.9
Median household income$72,283Asotin$72,283Washington$98,141US $80,734
Median home value$325,600Asotin$325,600Washington$564,600US $332,700
Median gross rent$1,043Asotin$1,043Washington$1,760US $1,413
Bachelor's degree or higher24.7%Asotin24.7%Washington39.6%US 35.7%
Mean commute15.3 minAsotin15.3 minWashington26.6 minUS 26.4 min
Population density35 / sq miAsotin35 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Asotin County

Largest towns in Asotin County
TownZIP codesPopulation
Clarkston 1 7,191
Asotin 1 1,021
Anatone 1 163

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Asotin County.

Not sure you are in Asotin County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Asotin County, with figures

ZIP codes in Asotin County
ZIP City Type Population Median income Median home
99401 Anatone , WA Standard 163 $41,438 $322,500
99402 Asotin , WA Standard 1,557 $78,906 $339,800
99403 Clarkston , WA Standard 20,760 $71,482 $325,300

Cite this page

zipcodes.pro. “Asotin County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wa/county/asotin

Underlying data is public domain or openly licensed — sources, vintages and licences.