Raritan
- County:
- Somerset County
- County Seat:
- No
- Area (mi²):
- 1.992
- State:
- New Jersey
Raritan is a borough located in Somerset County, New Jersey. Raritan has a 2026 population of 8,584. Raritan is currently growing at a rate of 0.99% annually and its population has increased by 9.77% since the most recent census, which recorded a population of 7,820 in 2020.