
Jupiter Island
- County:
- Martin County
- County Seat:
- No
- Area (mi²):
- 2.71
- State:
- Florida
Jupiter Island is a town located in Martin County, Florida. Jupiter Island has a 2025 population of 839. Jupiter Island is currently growing at a rate of 0.72% annually and its population has increased by 3.45% since the most recent census, which recorded a population of 811 in 2020.
The average household income in Jupiter Island is $545,061 with a poverty rate of 19.53%. The median age in Jupiter Island is 65.8 years: 69 years for males, and 62.6 years for females.