
Sayreville
- County:
- Middlesex County
- County Seat:
- No
- Area (mi²):
- 15.83
- State:
- New Jersey
Sayreville is a borough located in Middlesex County, New Jersey. Sayreville has a 2025 population of 45,676. Sayreville is currently growing at a rate of 0.2% annually and its population has increased by 1% since the most recent census, which recorded a population of 45,225 in 2020.
The average household income in Sayreville is $120,579 with a poverty rate of 6.01%. The median age in Sayreville is 39.6 years: 40 years for males, and 39.2 years for females.