Cornucopia is an unincorporated community 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. The community borders the lake at Siskiwit Bay, between Roman's Point and Mawikwe (formerly Squaw) Point. It is near a mainland portion of the Apostle Islands National Lakeshore, which features the Squaw Bay Sea Caves. Most residents of the Town of Bell with Cornucopia mailing addresses are considered residents of Cornucopia.