
Hardyston township
- County:
- Sussex County
- County Seat:
- No
- Area (mi²):
- 31.935
- State:
- New Jersey
Hardyston township is located in Sussex County, New Jersey. Hardyston township has a 2025 population of 8,591. Hardyston township is currently growing at a rate of 1.07% annually and its population has increased by 5.9% since the most recent census, which recorded a population of 8,112 in 2020.
The average household income in Hardyston township is $139,896 with a poverty rate of 7.52%. The median age in Hardyston township is 47.7 years: 48.8 years for males, and 46.5 years for females.