Jupiter Island is a barrier island in Martin County on Florida’s Atlantic coast, just north of Hobe Sound and near the Jupiter Inlet. Its approximate coordinates are 27.04° N, 80.11° W, which puts it on Florida’s Treasure Coast.

Where it sits

  • On the east side: the Atlantic Ocean.
  • On the west side: the Indian River Lagoon / waterway system.
  • Nearby mainland area: Hobe Sound.
  • County: Martin County, Florida.

Simple map view

Think of it as a narrow island strip along southeast Florida’s coast, between the ocean and inland waterways, south of Stuart and north of Palm Beach County.

Coordinates

  • Latitude: about 27.04° N.
  • Longitude: about 80.11° W.

TL;DR: Jupiter Island is a small barrier island on Florida’s Treasure Coast, just north of Hobe Sound and along the Atlantic side of Martin County.