
Harmony township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 23.75
- State:
- New Jersey
Harmony township is located in Warren County, New Jersey. Harmony township has a 2025 population of 2,531. Harmony township is currently growing at a rate of 0.12% annually and its population has increased by 1.44% since the most recent census, which recorded a population of 2,495 in 2020.
The average household income in Harmony township is $118,394 with a poverty rate of 3.19%. The median age in Harmony township is 50 years: 49.2 years for males, and 50.3 years for females.