what county is middletown pa in
Middletown is located in southeast Pennsylvania. Middletown is part of Dauphin County. Middletown has 2.04 square miles of land area and 0.05 square miles of water area. As of 2010, the total Middletown population is 8,901, which has shrunk 3.69% since 2000. The population growth rate is much lower than the state average rate of 3.43% and is much lower than the national average rate of 9.71%.