Deckerville is a village in Sanilac County in the U.S. state of Michigan.

[6] According to the United States Census Bureau, the village has a total area of 1.25 square miles (3.24 km2), all land.

There were 388 housing units at an average density of 310.4 per square mile (119.8/km2).

33.1% of all households were made up of individuals, and 17.1% had someone living alone who was 65 years of age or older.

There were 411 housing units at an average density of 321.5 per square mile (124.1/km2).

35.8% of all households were made up of individuals, and 15.4% had someone living alone who was 65 years of age or older.