
Concordia
- County:
- Middlesex County
- County Seat:
- No
- Area (mi²):
- 0.77
- State:
- New Jersey
Concordia is a CDP located in Middlesex County, New Jersey. Concordia has a 2025 population of 2,614. Concordia is currently declining at a rate of -1.21% annually but its population has increased by 3.73% since the most recent census, which recorded a population of 2,520 in 2020.
The average household income in Concordia is $84,509 with a poverty rate of 6.86%. The median age in Concordia is 72.4 years: 73.2 years for males, and 72.1 years for females.