98570 is zip code located in Onalaska, Washington. The population is 3,801, making 98570 the largest zipcode in Onalaska and the 4th largest in Lewis County.
There are 4 public schools in 98570 with an average Homefacts rating of B-. , and there are 5 registered sex offenders residing in the zip code 98570. Unemployment in 98570 is very high.