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Kelso, WA Demographics & ZIP Codes
Kelso, Washington demographics and median household income by ZIP code (in Cowlitz County) — 1 ZIP codes — population 26,948 — median income $70,058 — avg. home value $339,800. Compare income, housing, and population across ZIP codes on US5.
Population
26,948
Median household income (avg.)
$70,058
93% of U.S. median
Average home value
$339,800
98% of U.S. median
Average rent
$904
78% of U.S. median
Median age (avg.)
40.4
Kelso demographics
Kelso, Washington covers 1 ZIP code primarily in Cowlitz County, with a combined ZIP-area population of about 26,948.
Across ZIP codes with age data, the average median age is about 40.4 years.
Median household income in Kelso
The average median household income across ZIP codes in Kelso, Washington is about $70,058 — about 20% below the WA ZIP average ($87,083), and about 7% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $70,058 in 98626.
Housing in Kelso
For housing in Kelso, Washington, the average median home value is about $339,800 and the average median rent is about $904.
The most populous ZIP in this set is 98626 (about 26,948 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Kelso
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 98626 | Kelso | Cowlitz County | WA | 26,948 | $70,058 | $339,800 |
Frequently asked questions
What are the demographics of Kelso?
Kelso, Washington has a combined ZIP-area population of about 26,948 across 1 ZIP codes (primarily Cowlitz County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Kelso?
The average median household income across ZIP codes in Kelso, Washington is about $70,058, about 20% below the state ZIP average ($87,083), and about 7% below the U.S. median ($75,149). Average median home value is about $339,800.
How many ZIP codes are in Kelso?
Kelso, Washington includes 1 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Kelso?
This page lists ZIP codes in Kelso, Washington with population, median household income, and home value. Select a ZIP for a full demographics profile.