Onalaska, WA ZIP Code
ZIP code, county, time zone and coordinates of Onalaska, Washington
The ZIP code of Onalaska, WA is 98542. It is in Lewis County.
Mailing address format for Onalaska
John Smith 123 Main St ONALASKA WA 98542 USA
USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.
All ZIP codes in Onalaska
| ZIP code | Population | Area | |
|---|---|---|---|
| 98542 | — | 10.9 sq mi | Main |
ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.
Where is Onalaska? Location, county and time zone
- State
- Washington
- County
- Lewis County
- GPS coordinates
- 46.57822, -122.71114
- Elevation
- 515 ft (157 m)
- Time zone
- America/Los AngelesPST · UTC-08:00
- Population
- 657
Map of Onalaska, WA 98542
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Onalaska ZIP code: FAQ
What is the ZIP code for Onalaska, WA?
The main ZIP code for Onalaska, WA is 98542.
How many ZIP codes does Onalaska have?
Onalaska has 1 ZIP code.
What county is Onalaska, WA in?
Onalaska is in Lewis County, Washington.
What time zone is Onalaska in?
Onalaska is in the America/Los Angeles time zone (PST, UTC-08:00 right now).
What are the coordinates of Onalaska?
Latitude 46.57822, longitude -122.71114.
Last updated: