Monroeville is a city located in Allegheny County Pennsylvania. With a 2020 population of 27,128, it is the 18th largest city in Pennsylvania and the 1413th largest city in the United States . Monroeville is currently declining at a rate of -0.46% annually and its population has decreased by -4.43% since the most recent census, which recorded a population of 28,386 in 2010. Monroeville reached it's highest population of in . Spanning over 20 miles, Monroeville has a population density of 1,376 people per square mile.
The average household income in Monroeville is $80,549 with a poverty rate of 7.10%. The median rental costs in recent years comes to $1,051 per month, and the median house value is $150,400. The median age in Monroeville is 46.2 years, 45.1 years for males, and 47.3 years for females.