High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Mount Healthy Heights is a census-designated place (CDP) in Hamilton County, Ohio, United States. The population was 3,450 at the 2000 census. According to the United States Census Bureau, the CDP has a total area of 0.8 square miles (2.0 km²), all of it land. As of the census of 2000, there were 3,450 people, 1,281 households, and 959 families residing in the CDP. The population density was 4,489.7 people per square mile (1,729.9/km²). There were 1,320 housing units at an average density of 1,717.8/sq mi (661.9/km²).