Cottage Grove was named from a settler’s cottage in a grove near the village site. Cottage Grove is a town in Dane County, Wisconsin. The Village of Cottage Grove is located within the town. The unincorporated communities of Door Creek, Nora, and Vilas are also located in the town. The unincorporated community of Hoffman Corners is also located partially in the town. A suburb of Madison, it shares a school district with Monona.