
Allen township
- County:
- Northampton County
- County Seat:
- No
- Area (mi²):
- 10.846
- State:
- Pennsylvania
Allen township is located in Northampton County, Pennsylvania. Allen township has a 2025 population of 5,451. Allen township is currently declining at a rate of 0% annually and its population has decreased by -0.31% since the most recent census, which recorded a population of 5,468 in 2020.
The average household income in Allen township is $134,504 with a poverty rate of 3%. The median age in Allen township is 42.1 years: 41.3 years for males, and 45.8 years for females.