Deckerville is a village in Sanilac County in the U.S. state of Michigan. The population was 944 at the 2000 census.
According to the United States Census Bureau, the village has a total area of 1.3 square miles (3.3 km²), all land.
As of the census of 2000, there were 944 people, 369 households, and 215 families residing in the village. The population density was 738.5 inhabitants per square mile (284.8/km²). There were 411 housing units at an average density of 321.5 per square mile (124.0/km²). The racial makeup of the village was 94.70% White, 0.32% African American, 0.32% Native American, 0.11% Asian, 3.18% from other races, and 1.38% from two or more races. Hispanic or Latino of any race were 8.05% of the population.