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Onalaska, WA Demographics & ZIP Codes
Onalaska, Washington demographics and median household income by ZIP code (in Lewis County) — 1 ZIP codes — population 5,060 — median income $65,682 — avg. home value $352,000. Compare income, housing, and population across ZIP codes on US5.
Population
5,060
Median household income (avg.)
$65,682
87% of U.S. median
Average home value
$352,000
101% of U.S. median
Average rent
$639
55% of U.S. median
Median age (avg.)
40.8
Onalaska demographics
Onalaska, Washington covers 1 ZIP code primarily in Lewis County, with a combined ZIP-area population of about 5,060.
Across ZIP codes with age data, the average median age is about 40.8 years.
Median household income in Onalaska
The average median household income across ZIP codes in Onalaska, Washington is about $65,682 — about 25% below the WA ZIP average ($87,083), and about 13% below the U.S. median ($75,149).
The highest median household income among listed ZIPs is about $65,682 in 98570.
Housing in Onalaska
For housing in Onalaska, Washington, the average median home value is about $352,000 and the average median rent is about $639.
The most populous ZIP in this set is 98570 (about 5,060 residents). Use the table below to compare population, income, and home values across codes.
ZIP codes in Onalaska
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 98570 | Onalaska | Lewis County | WA | 5,060 | $65,682 | $352,000 |
Frequently asked questions
What are the demographics of Onalaska?
Onalaska, Washington has a combined ZIP-area population of about 5,060 across 1 ZIP codes (primarily Lewis County). Browse the ZIP table below for population, income, and housing by code.
What is the median household income in Onalaska?
The average median household income across ZIP codes in Onalaska, Washington is about $65,682, about 25% below the state ZIP average ($87,083), and about 13% below the U.S. median ($75,149). Average median home value is about $352,000.
How many ZIP codes are in Onalaska?
Onalaska, 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 Onalaska?
This page lists ZIP codes in Onalaska, Washington with population, median household income, and home value. Select a ZIP for a full demographics profile.