From Jeff's Jupiter Island Homes for sale page: About Jupiter Island- Florida's most exclusive and luxurious real estate. The unmatched beauty, quality and uniqueness of these homes and properties coupled with a growing desire for privacy have attracted the rich and famous alike. Most Jupiter Island homes are built on one and two acre parcels. These are often well shielded from the public with private access and ocean-facing homes on private beaches. Jupiter Island offers a historic natural setting with breathtaking views Atlantic and intracoastal waters.