Onalaska, WA zip code
Onalaska, Washington uses one zip code: 98570. Most of it is in Lewis County. Together these zip codes are home to about 5.3K people.
Zip codes
1
Population
5.3K
All zips combined
Largest zip
98570
5,319 residents
Zip codes in Onalaska
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 98570 | 5,319 | $95,795 |