Larsen, WisconsinLarsen is an unincorporated community in the town of Clayton, in Winnebago County, Wisconsin, United States.HistoryA post office called Larsen has been in operation since 1898. The community was named for Philip Larsen, the first storekeeper there.ReligionSt Peter's Lutheran Church is a Christian church of the Wisconsin Evangelical Lutheran Synod in Larsen.TransportationThe Larson Brothers Airport is located near Larsen.