
Middletown township
- County:
- Dauphin County
- County Seat:
- No
- Area (mi²):
- 18.891
- State:
- Pennsylvania
Middletown township is located in Dauphin County, Pennsylvania. Middletown township has a 2025 population of 45,520. Middletown township is currently declining at a rate of -0.13% annually and its population has decreased by -1.02% since the most recent census, which recorded a population of 45,990 in 2020.
The average household income in Middletown township is $132,847 with a poverty rate of 5.26%. The median age in Middletown township is 44 years: 42 years for males, and 45.8 years for females.