Colman is a city in Moody County, South Dakota, United States. The population was 594 at the 2010 census.
Colman was first named Allentown, and under the latter name had its start in 1890 by the building of the Milwaukee Railroad through that territory.
Colman is located at 43°59′1″N 96°48′48″W (43.983633, -96.813349).
According to the United States Census Bureau, the city has a total area of 1.88 square miles (4.87 km2), all of it land.
Colman has been assigned the ZIP code 57017 and the FIPS place code 13220.
As of the census of 2010, there were 594 people, 237 households, and 160 families residing in the city. The population density was 316.0 inhabitants per square mile (122.0/km2). There were 263 housing units at an average density of 139.9 per square mile (54.0/km2). The racial makeup of the city was 94.4% White, 0.3% African American, 1.7% Native American, 0.8% Asian, 0.8% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 1.7% of the population.
There were 237 households, of which 38.0% had children under the age of 18 living with them, 50.6% were married couples living together, 12.7% had a female householder with no husband present, 4.2% had a male householder with no wife present, and 32.5% were non-families. 29.5% of all households were made up of individuals, and 13.1% had someone living alone who was 65 years of age or older.