The Town of Greenfield is a located in Sauk County, Wisconsin, United States.

[3] According to the United States Census Bureau, the town has a total area of 29.7 square miles (76.8 km2), all of it land.

At the 2000 census there were 911 people in 351 households, including 259 families, in the town.

There were 384 housing units at an average density of 12.9 per square mile (5.0/km2).

Media related to Greenfield, Sauk County, Wisconsin at Wikimedia Commons