The Town[3] of Westport is located in Dane County, Wisconsin, United States and a suburb of Madison.

The town was named after Westport, County Mayo in Ireland because many of the early settlers were from there.

Governor Nelson State Park is located in the town.

At the 2000 census there were 3,586 people, 1,546 households, and 1,049 families living in the town.

There were 1,752 housing units at an average density of 78.8 per square mile (30.4/km2).