
Rio Grande
- County:
- Cape May County
- County Seat:
- No
- Area (mi²):
- 2.7
- State:
- New Jersey
Rio Grande is a CDP located in Cape May County, New Jersey. Rio Grande has a 2025 population of 3,538. Rio Grande is currently growing at a rate of 1.67% annually and its population has increased by 28.23% since the most recent census, which recorded a population of 2,759 in 2020.
The average household income in Rio Grande is $102,940 with a poverty rate of 9.92%. The median age in Rio Grande is 51.6 years: 54.1 years for males, and 51.4 years for females.