St. Paul is a small town on the border of Decatur and Shelby counties in the U.S. state of Indiana. The population was 1,031 at the 2010 census. History St. Paul had its start in the year 1853 by the building of the railroad through that territory. It was named for Jonathan Paul, a pioneer settler. An old variant name of the community was called Paultown. Geography St. Paul is located at (39.428227, -85.629222), along the Flatrock River. According to the 2010 census, St. Paul has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 1,031 people, 384 households, and 278 families living in the town. The population density was . There were 443 housing units at an average density of . The racial makeup of the town was 98.3% White, 0.3% African American, 0.1% Native American, 0.1% Pacific Islander, 0.3% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.5% of the population. There were 384 households, of which 37.2% had children under the age of 18 living with them, 50.8% were married couples living together, 14.3% had a female householder with no husband present, 7.3% had a male householder with no wife present, and 27.6% were non-families. 21.6% of all households were made up of individuals, and 9.7% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.10. The median age in the town was 35.7 years. 27% of residents were under the age of 18; 9.2% were between the ages of 18 and 24; 27% were from 25 to 44; 25.3% were from 45 to 64; and 11.6% were 65 years of age or older. The gender makeup of the town was 49.3% male and 50.7% female. 2000 census As of the census of 2000, there were 1,022 people, 372 households, and 286 families living in the town. The population density was . There were 394 housing units at an average density of . The racial makeup of the town was 97.95% White, 0.10% African American, 0.29% Native American, 0.20% Asian, 0.10% Pacific Islander, and 1.37% from two or more races. Hispanic or Latino of any race were 0.78% of the population. There were 372 households, out of which 44.4% had children under the age