Dorchester is a village in Clark and Marathon counties in the U.S. state of Wisconsin, along the 45th parallel.

There were 383 housing units at an average density of 275.5 per square mile (106.4/km2).

28.2% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older.

As of the census[5] of 2000, there were 827 people, 336 households, and 220 families living in the village.

There were 354 housing units at an average density of 270.4 per square mile (104.3/km2).

27.1% of all households were made up of individuals, and 13.7% had someone living alone who was 65 years of age or older.