Fruit Hill is a census-designated place (CDP) in Hamilton County, Ohio, United States. The population was 3,755 at the 2010 census.GeographyFruit Hill is located at .According to the United States Census Bureau, the CDP has a total area of 3.3sqkm, all land.DemographicsAs of the census of 2000, there were 3,945 people, 1,428 households, and 1,118 families residing in the CDP. The population density was 3,153.2 people per square mile (1,218.5/km²). There were 1,452 housing units at an average density of 1,160.6/sq mi (448.5/km²). The racial makeup of the CDP was 97.49% White, 0.79% African American, 0.30% Native American, 1.06% Asian, 0.03% from other races, and 0.33% from two or more races. Hispanic or Latino of any race were 0.63% of the population.There were 1,428 households out of which 39.6% had children under the age of 18 living with them, 67.3% were married couples living together, 8.2% had a female householder with no husband present, and 21.7% were non-families. 19.5% 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 3.08.