Saint Joe is a town in Concord Township, DeKalb County, Indiana, United States. The population was 460 at the 2010 census. History Saint Joe was laid out in 1875, and incorporated as a town in 1899. The town derives its name from the St. Joseph River. Geography Saint Joe is located at (41.314829, -84.900696). According to the 2010 census, St. Joe has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 460 people, 157 households, and 115 families living in the town. The population density was . There were 179 housing units at an average density of . The racial makeup of the town was 95.9% White, 0.9% Asian, 0.4% from other races, and 2.8% from two or more races. Hispanic or Latino of any race were 3.7% of the population. There were 157 households, of which 42.7% had children under the age of 18 living with them, 55.4% were married couples living together, 7.0% had a female householder with no husband present, 10.8% had a male householder with no wife present, and 26.8% were non-families. 19.1% of all households were made up of individuals, and 7% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.39. The median age in the town was 33.1 years. 32.6% of residents were under the age of 18; 9.9% were between the ages of 18 and 24; 23.7% were from 25 to 44; 23% were from 45 to 64; and 10.9% were 65 years of age or older. The gender makeup of the town was 50.9% male and 49.1% female. 2000 census As of the census of 2000, there were 478 people, 165 households, and 132 families living in the town. The population density was . There were 184 housing units at an average density of . The racial makeup of the town was 97.49% White, 0.21% African American, 0.21% Native American, 1.46% from other races, and 0.63% from two or more races. Hispanic or Latino of any race were 3.77% of the population. There were 165 households, out of which 45.5% had children under the age of 18 living with them, 64.2% were married couples living together, 10.3% had a female householder with no husband present, and 19.4% were non-families. 18.2% of all households were made up of