There were 369 households out of which 26.8% had children under the age of 18 living with them, 42.3% were married couples living together, 13.3% had a female householder with no husband present, and 41.5% were non-families. 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. The average household size was 2.33 and the average family size was 3.02.

In the village the population was spread out with 23.6% under the age of 18, 8.1% from 18 to 24, 26.0% from 25 to 44, 20.1% from 45 to 64, and 22.2% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 84.4 males. For every 100 females age 18 and over, there were 80.3 males.

The median income for a household in the village was $30,083, and the median income for a family was $39,063. Males had a median income of $31,250 versus $22,102 for females. The per capita income for the village was $18,791. About 8.9% of families and 14.0% of the population were below the poverty line, including 17.3% of those under age 18 and 15.2% of those age 65 or over.

• The amount of land area in Deckerville is 3.312 sq. kilometers.

• The amount of surface water is 0 sq kilometers.

• The distance from Deckerville to Washington DC is 447 miles. The distance to the Michigan state capital is 111 miles. 

• Deckerville is positioned 43.52 degrees north of the equator and 82.74  degrees west of the prime meridian.