
Clark township
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 4.273
- State:
- New Jersey
Clark township is located in Union County, New Jersey. Clark township has a 2025 population of 15,803. Clark township is currently growing at a rate of 1.19% annually and its population has increased by 2.14% since the most recent census, which recorded a population of 15,472 in 2020.
The average household income in Clark township is $140,620 with a poverty rate of 2.87%. The median age in Clark township is 43.2 years: 41.3 years for males, and 44.9 years for females.