
Leonardo
- County:
- Monmouth County
- County Seat:
- No
- Area (mi²):
- 0.594
- State:
- New Jersey
Leonardo is a CDP located in Monmouth County, New Jersey. Leonardo has a 2025 population of 2,231. Leonardo is currently declining at a rate of -1.54% annually and its population has decreased by -3.08% since the most recent census, which recorded a population of 2,302 in 2020.
The average household income in Leonardo is $128,738 with a poverty rate of 4.31%. The median age in Leonardo is 39.4 years: 36.9 years for males, and 41.9 years for females.