Newton
- County:
- Sussex County
- County Seat:
- No
- Area (mi²):
- 3.36
- State:
- New Jersey
Newton is a town located in Sussex County, New Jersey. Newton has a 2026 population of 8,435. Newton is currently growing at a rate of 2.24% annually and its population has increased by 1.07% since the most recent census, which recorded a population of 8,346 in 2020.