
Haddon township
- County:
- Sullivan County
- County Seat:
- No
- Area (mi²):
- 71.231
- State:
- Indiana
Haddon township is located in Sullivan County, Indiana. Haddon township has a 2025 population of 3,759. Haddon township is currently growing at a rate of 0.27% annually and its population has increased by 0.29% since the most recent census, which recorded a population of 3,748 in 2020.
The average household income in Haddon township is $82,936 with a poverty rate of 11.3%. The median age in Haddon township is 40.6 years: 42.2 years for males, and 36 years for females.