Herold is an unincorporated community located in the town of Belvidere, in Buffalo County, Wisconsin, United States. Herold is located along Co…Herold is an unincorporated community located in the town of Belvidere, in Buffalo County, Wisconsin, United States. Herold is located along County Highway E 4 miles east-southeast of Alma. The community was named for William Herold, a farmer who became the community's first postmaster when the post office opened in April 1891.