Johnsburg, Wisconsin is an unincorporated community in the Town of Calumet in Fond du Lac County, Wisconsin. The community is locate…Johnsburg, Wisconsin is an unincorporated community in the Town of Calumet in Fond du Lac County, Wisconsin. The community is located on County Roads Q and W, approximately 3.3 miles east of Lake Winnebago, 2.75 miles southeast of Pipe and 1.4 miles northwest of Malone. Johnsburg is part of the Holyland region in northeastern Fond du Lac county.