Onalaska is a small unincorporated community in Lewis County, Washington, United States. Onalaska is located along Washington State Route 508. Onalaska has a post office with ZIP code 98570.
Use of the name Onalaska in the United States
The name for the community comes from the poem, "The Pleasures of Hope" by Scottish poet Thomas Campbell. Onalaska, Washington, Onalaska, Wisconsin, Onalaska, Arkansas and Onalaska, Texas are all historically connected to one another through the lumber industry.
The Onalaska School District provides the community's education.
- Onalaska Elementary/Middle School is the community's public elementary/middle school