Middletown is a city located in Dauphin County Pennsylvania. With a 2020 population of 10,216, it is the 67th largest city in Pennsylvania and the 3053rd largest city in the United States . Middletown is currently growing at a rate of 3.14% annually and its population has increased by 14.77% since the most recent census, which recorded a population of 8,901 in 2010. Middletown reached it's highest population of in . Spanning over 2 miles, Middletown has a population density of 5,031 people per square mile.
The average household income in Middletown is $62,477 with a poverty rate of 15.85%. The median rental costs in recent years comes to $941 per month, and the median house value is $119,700. The median age in Middletown is 35.8 years, 33.2 years for males, and 38.9 years for females.