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zipcodes.pro — CITY/WA/KELSO

Kelso ZIP code, Washington

The ZIP code for Kelso, WA is 98626, and its area code is 360.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
12,684
Area code
360

NANPA lists no telephone rate centre for Kelso itself, so these are the area codes of the nearest one, Kalama (10.6 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Kelso uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Kelso in numbers

About 12,684 people live in Kelso, in 5,435 households. The median household income is $66,751 a year, 32% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $337,600 (40% below the Washington median), and median gross rent is $1,220 a month. The median age is 39.9; 12.5% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 21 minutes.

Population12,684Kelso12,684
Households5,435Kelso5,435
Median age39.9Kelso39.9Washington38.3US 38.9
Median household income$66,751Kelso$66,751Washington$98,141US $80,734
Median home value$337,600Kelso$337,600Washington$564,600US $332,700
Median gross rent$1,220Kelso$1,220Washington$1,760US $1,413
Bachelor's degree or higher12.5%Kelso12.5%Washington39.6%US 35.7%
Mean commute20.8 minKelso20.8 minWashington26.6 minUS 26.4 min
Population density1,559 / sq miKelso1,559 / sq mi

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

ZIP codes addressed as Kelso

ZIP codes with the USPS city name Kelso
ZIP City Type Population Median income Median home
98626 Kelso , WA Standard 26,892 $75,528 $368,900

Other ZIP codes overlapping Kelso

These ZIP codes cover part of Kelso but are addressed as somewhere else.

ZIP codes overlapping Kelso
ZIP City Type Population Median income Median home
98632 Longview , WA Standard 50,635 $66,305 $379,200

Map of Kelso ZIP codes

98626

The ZIP codes of Kelso, WA, 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.

Towns near Kelso

The nearest larger towns are Longview (38,069 people, 4.2 mi), St. Helens, OR (14,258 people, 18 mi) and Ridgefield (13,408 people, 23 mi).

Towns near Kelso
TownPopulationDistance
Longview 38,069 4.2 mi
Lexington 4,413 5.2 mi
Longview Heights 4,357 5.4 mi
Kalama 3,050 7.2 mi
Woodland 6,487 15.1 mi
St. Helens, OR 14,258 18.3 mi
La Center 3,883 20.4 mi
Vernonia, OR 2,786 22.5 mi
Ridgefield 13,408 23.1 mi
Scappoose, OR 8,179 24.8 mi
Battle Ground 21,886 28.8 mi
Mount Vista 10,764 28.9 mi
Felida 10,841 29.0 mi

More nearby: every ZIP code in Cowlitz County · Washington ZIP codes

Cite this page

zipcodes.pro. “Kelso, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/kelso

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