Cornucopia is an unincorporated census-designated place in the Town of Bell in northern Bayfield County, Wisconsin, United States. It is situated on Lake Superior at the northern end of the Bayfield Peninsula, on Wisconsin Highway 13. As of the 2010 census, its population was 98. The community borders the lake at Siskiwit Bay, between Roman's Point and Mawikwe (formerly Squaw) Point.