Warrensville Heights is a city in Cuyahoga County, Ohio, United States. The population was 13,542 at the 2010 census. According to the United States Census Bureau, the city has a total area of 4.1 square miles (11km2), all of it land. As of the census of 2000, there were 15,109 people, 6,325 households, and 4,048 families residing in the city. The population density was 3,661.4 people per square mile (1,412.5/Sq/km). There were 6,741 housing units at an average density of 1,633.5 per square mile (630.2/Sq/km). The racial makeup of the city was 6.57% White, 90.41% African American, 0.17% Native American, 0.91% Asian, 0.04% Pacific Islander, 0.32% from other races, and 1.58% from two or more races. Hispanic or Latino of any race were 0.75% of the population. Warrensville Heights is a city in Cuyahoga County, Ohio, United States. The population was 13,542 at the 2010 census.