Jupiter Island was first counted by the census in 1960, and 1 of its places is on the National Register
Most of Jupiter Island was built recently: 6% of its homes predate 1940 and the median home dates from 1985. Its Register listing is the Gate House. Below: maps from 1948 on and the census since 1960.
Wikipedia doesn’t have a history of Jupiter Island yet. The photos, dates and memories neighbors add here are how it gets written.
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.
Its first post office opened in 1960. Its population held steady between the last two censuses: 817 in 2010, 804 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Every edition of the U.S. Geological Survey’s map of Jupiter Island. Tap a year, or press play to watch the town change.
1948Hobe Sound sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Jupiter Island.
On the National Register
1 historic place in Jupiter Island
The country’s official list of buildings and places worth saving.
place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
5
each building in a district counts
first listed
2001
Gate House
Buildings
Architectural styles listings
Late 19th and Early 20th Century American Movements1
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (3), Wikidata (1), the National Register of Historic Places (1), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
2021
2010
2004
