Vilas County is a county in the state of Wisconsin, United States. As of the 2020 census, the population was 23,047. Its county seat is Eagle River. The county partly overlaps the reservation of the Lac du Flambeau Band of Lake Superior Chippewa.

Eagle River is a city in Vilas County, Wisconsin, United States. The population was 1,628 at the 2020 census. It is the county seat of Vilas County. Because of the many lakes in the area, the city is a popular vacation and retirement destination. The area contains many condominiums, seasonal vacation homes, and hunting cabins.