Greendale, Indiana  Greendale is a city in Dearborn County, Indiana, United States. The population was 4,520 at the 2010 census. Greendale was laid out in 1852, but the plat was not recorded until 1883. Greendale likely took its name from Greendale Cemetery. Greendale is located at (39.121438, -84.853937). According to the 2010 census, Greendale has a total area of , of which (or 98.7%) is land and (or 1.3%) is water. As of the census of 2010, there were 4,520 people, 1,809 households, and 1,241 families living in the city. The population density was . There were 1,942 housing units at an average density of . The racial makeup of the city was 95.6% White, 1.0% African American, 0.2% Native American, 0.8% Asian, 0.6% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 1.6% of the population. There were 1,809 households of which 33.1% had children under the age of 18 living with them, 49.9% were married couples living together, 12.8% had a female householder with no husband present, 5.9% had a male householder with no wife present, and 31.4% were non-families. 27.1% of all households were made up of individuals and 12.6% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.02. The median age in the city was 40.1 years. 24.4% of residents were under the age of 18; 6.9% were between the ages of 18 and 24; 25% were from 25 to 44; 28.4% were from 45 to 64; and 15.3% were 65 years of age or older. The gender makeup of the city was 47.8% male and 52.2% female. As of the census of 2000, there were 4,296 people, 1,781 households, and 1,212 families living in the city. The population density was 710.5 people per square mile (274.2/km²). There were 1,852 housing units at an average density of 306.3 per square mile (118.2/km²).