Romulus is a suburban city of Metro Detroit, located in Wayne County in the U.S. state of Michigan. The population was 23,989 at the 2010 census, an increase from 22,979 in 2000. Romulus is home to Detroit Metropolitan Wayne County Airport and a General Motors plant (Romulus Engine) that opened in 1976. The city is the westernmost community in the Downriver area in Wayne County.
According to the United States Census Bureau, the city has a total area of 35.9 square miles (93.0 km²), of which 35.9 square miles (93.0 km²) is land and 0.03% is water. The City of Romulus is bound to the North by Van Born Road, to the South by Pennsylvania Road, to the East by Inkster Road, and to the West by Hannan Road.
As of the census of 2000, there were 22,979 people, 8,439 households, and 5,941 families residing in the city. The population density was 639.9 per square mile (247.1/km²). There were 8,943 housing units at an average density of 249.0 per square mile (96.2/km²). The racial makeup of the city was 65.36% White, 29.99% African American, 0.54% Native American, 0.59% Asian, 0.09% Pacific Islander, 0.81% from other races, and 2.63% from two or more races. Hispanic or Latino of any race were 2.01% of the population.