Dodge County is a county located in the U.S. state of Wisconsin. As of the 2020 census, the population was 89,396. Its county seat is Juneau. The county was created from the Wisconsin Territory in 1836 and organized in 1844. Dodge County comprises the Beaver Dam, WI Micropolitan Statistical Area, which is included in the Milwaukee–Racine–Waukesha, WI Combined Statistical Area.