Fanwood
- County:
- Union County
- County Seat:
- No
- Area (mi²):
- 1.34
- State:
- New Jersey
Fanwood is a borough located in Union County, New Jersey. Fanwood has a 2026 population of 7,968. Fanwood is currently growing at a rate of 2.39% annually and its population has increased by 2.83% since the most recent census, which recorded a population of 7,749 in 2020.