
Mystic Island
- County:
- Burlington County
- County Seat:
- No
- Area (mi²):
- 6.921
- State:
- New Jersey
Mystic Island is a CDP located in Burlington County, New Jersey. Mystic Island has a 2025 population of 7,420. Mystic Island is currently declining at a rate of -0.96% annually and its population has decreased by -10.56% since the most recent census, which recorded a population of 8,296 in 2020.
The average household income in Mystic Island is $97,015 with a poverty rate of 16.41%. The median age in Mystic Island is 56.8 years: 55.9 years for males, and 57.5 years for females.