Town Hall Address W12785 County Road AS Waupun, WI 53963 United States- Fond du Lac County Website https://townofalto.com Town Clerk 920-948-8268 W12785 County Road AS Waupun, WI 53963 United States Tax Collector 920-948-8268 W12785 County Road AS Waupun, WI 53963 United States Town Hall Hours Monday - Friday: 9:00 AM - 6:00 PM County Fond du Lac