Middleburg Heights is a city in Cuyahoga County, Ohio, United States. The population was 15,946 at the 2010 census. As of the census of 2000, there were 15,542 people, 6,705 households, and 4,257 families residing in the city. The population density was 1,924.8 people per square mile (743.6/Sq-km). There were 7,094 housing units at an average density of 878.6 per square mile (339.4/Sq-km). The racial makeup of the city was 94.63% White, 1.33% African American, 0.15% Native American, 2.26% Asian, 0.07% Pacific Islander, 0.28% from other races, and 1.28% from two or more races. Hispanic or Latino of any race were 1.27% of the population.