Sunfield is a village in Eaton County in the U.S. state of Michigan.
According to the United States Census Bureau, the village has a total area of 0.80 square miles (2.07 km2), all land.
There were 241 housing units at an average density of 301.3 per square mile (116.3/km2).
26.0% of all households were made up of individuals, and 9.3% had someone living alone who was 65 years of age or older.
There were 235 housing units at an average density of 365.7 per square mile (141.2/km2).
23.9% of all households were made up of individuals, and 9.5% had someone living alone who was 65 years of age or older.