Town Hall Address N5589 Commerce Road Onalaska, WI 54650 United States- La Crosse County Website https://townofonalaska.org Town Clerk 608-783-4958 Ext. 201 N5589 Commerce Road Onalaska, WI 54650 United States Tax Collector 608-783-4958 Ext. 201 N5589 Commerce Road Onalaska, WI 54650 United States Town Hall Hours Monday - Thursday: 8:00 AM - 4:30 PM and Friday: 8:00 AM - 12:00 PM County La Crosse