Monroeville is a borough with home rule status in Allegheny County, Pennsylvania, United States. Located about 10 miles east of Pittsburgh, Monroeville is a suburb with mixed residential and commercial developments. As of the 2010 census, Monroeville was home to 28,386 people.
Named for Joel Monroe, the area's first postmaster, Monroeville was settled in the mid to late 18th century. The area was incorporated as Patton Township in 1849 before becoming the borough of Monroeville on January 25, 1951. Monroeville became a Home Rule Charter Municipality on May 21, 1974.
A suburb of Pittsburgh, Monroeville is located at 40°25′52″N 79°45′55″W.
According to the United States Census Bureau, the municipality has a total area of 19.8 square miles (51 km2), of which 0.05% is water.
Monroeville has nine borders, including Plum to the north, Murrysville in Westmoreland County to the east, Penn Township in Westmoreland County to the southeast, Trafford in Westmoreland County to the south, North Versailles, Wilmerding and Turtle Creek to the southwest, Wilkins Township to the west, and Penn Hills to the northwest. Also, the borough of Pitcairn is entirely situated inside Monroeville in the south-southwest area.
As of the census of 2010 there were 28,386 people in Monroeville. The racial makeup of the city was 79.51% White, 12.58% African American, 6.07% Asian, 0.42% from other races. Hispanic or Latino of any race were 1.41% of the population.