Jupiter Island, Florida

Jupiter Island is a town located on the barrier island also called Jupiter Island, in Martin County, Florida, United States; the town is part of Florida's Treasure Coast. It is part of the Port St. Lucie metropolitan area. The Town of Jupiter Island is located next to the unincorporated community of Hobe Sound. The population of Jupiter Island was 804 at the 2020 census.

Some of the wealthiest people in the United States live in Jupiter Island; the June 1999, issue of Worth magazine ranked it number one in the country for having the highest median home sale.

The approximate coordinates for the Town of Jupiter Island is located at 27°3′26″N 80°6′49″W / 27.05722°N 80.11361°W / 27.05722; -80.11361 (27.057287, –80.113616).

It occupies the barrier island of the same name from the Palm Beach County line in the south to the Hobe Sound National Wildlife Refuge boundary in the north. It is bordered to the west by Hobe Sound and South Jupiter Narrows, and to the east by the Atlantic Ocean.

According to the United States Census Bureau, the town has a total area of 3.6 square miles (9.3 km²), of which 2.7 square miles (7.0 km²) are land and 0.9 square miles (2.3 km²), or 24.30%, are water.

The Town of Jupiter Island has a tropical climate, similar to the climate found in much of the Caribbean. It is part of the only region in the 48 contiguous states that falls under that category. More specifically, it generally has a tropical savanna climate (Köppen climate classification: Aw), bordering a tropical monsoon climate (Köppen climate classification: Am).

As of the 2020 United States census, there were 804 people, 332 households, and 194 families residing in the town.

As of the 2010 United States census, there were 817 people, 248 households, and 157 families residing in the town.