Palm Beach
A barrier-island town in Palm Beach County with its own design review, landmark and permitting process
Martin County · Treasure Coast barrier island
Jupiter Island, Florida
A barrier-island town in Martin County with nine miles of Atlantic frontage
Jupiter Island is a barrier-island town in Martin County, Florida (ZIP 33455), with 804 residents at the 2020 Census. The town reports nine miles of Atlantic Ocean frontage, with the Intracoastal Waterway to the west. Its southern edge is the Palm Beach County line, and its northern edge is the Hobe Sound National Wildlife Refuge.
In short: Jupiter Island is a barrier-island town in Martin County, Florida, with 804 residents and nine miles of Atlantic frontage.
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Overview
Jupiter Island at a glance
| Fact | Value | Source |
|---|---|---|
| Location | Martin County, Florida, on the Treasure Coast. ZIP 33455, shared with much of Hobe Sound; Town Hall is at 2 Bridge Road, Hobe Sound | Notes 1, 2 |
| Population | 804 (2020 Census, as reported by Wikipedia). The town’s own profile cites about 820 permanent residents, an undated figure | Notes 1, 2 |
| Area | About 2.7 square miles of land (Wikipedia); the town’s site cites about 1,643 acres of land, roughly 2.6 square miles | Notes 1, 2 |
| Incorporated | 1953 | Note 1 |
| Setting | Barrier island with about nine miles of Atlantic Ocean frontage to the east and the Intracoastal Waterway to the west, according to the town | Note 1 |
| Boundaries | The Palm Beach County line to the south and the Hobe Sound National Wildlife Refuge boundary to the north | Note 2 |
| Local government | Commission-manager form; the town’s Building Department administers zoning, permits, plan review, inspections, contractor licensing and code enforcement | Notes 1, 2 |
| Beach Protection District | Established in 1982 as a separate taxing unit that administers and finances beach renourishment and restoration | Note 1 |
For another small oceanfront town in a different county, see Manalapan in Palm Beach County.
Setting
How is Jupiter Island laid out?
It is a long, narrow barrier island, so ocean frontage, a separate beach taxing district and water on the west shape ownership.
- The town occupies the barrier island from the Palm Beach County line in the south to the Hobe Sound National Wildlife Refuge boundary in the north (Note 2).
- According to Wikipedia, it is bordered on the west by Hobe Sound and South Jupiter Narrows, and on the east by the Atlantic Ocean (Note 2).
- The town describes nine miles of Atlantic Ocean frontage and the Intracoastal Waterway to the west (Note 1).
- The town includes part of the southern portion of the wildlife refuge, according to Wikipedia’s article on the island (Note 2).
Jupiter Island is in Martin County and is a separate municipality from places that share the Jupiter name, so confirm the municipality before you rely on tax, zoning or permit assumptions.
Local rules
Who sets the rules in Jupiter Island?
The town runs its own building, zoning and beach programs and publishes its zoning map.
- The Building Department administers zoning, permitting, plan review, inspections, contractor licensing and code enforcement, and publishes an Island Zoning Map (2025 edition) (Note 1).
- Design review is referenced as part of the permitting process on the town’s site (Note 1).
- The Jupiter Island Beach Protection District was established in 1982 as a separate taxing unit to administer and finance beach renourishment and restoration (Note 1).
Town Hall is at 2 Bridge Road, Hobe Sound, FL 33455. Confirm current rules and any district taxes with the town and the Martin County Property Appraiser.
Due diligence
What should you check before buying in Jupiter Island?
| Check | Why it matters here | Source |
|---|---|---|
| Coastal construction control line | Florida law bars construction seaward of a state-established control line without authorization. The state sets control lines county by county; ask FDEP whether a line is established where the parcel sits. Whether a given parcel is seaward of the line depends on the parcel | Note 3 |
| FEMA flood zone and elevation | Flood zone is parcel specific and affects insurance and elevation requirements. The town’s permit process includes a floodplain review category | Notes 1, 4 |
| Zoning map and design review | Check the town’s Island Zoning Map and the building permit and design review steps for the specific address before you plan work | Note 1 |
| Beach Protection District | The town operates a separate taxing unit that funds beach renourishment. Ask how it applies to a specific parcel and what it costs | Note 1 |
This is a checklist, not advice. Confirm each item with the town, the county and your attorney.
Comparison
How does Jupiter Island compare with nearby places?
| Community | Setting | How it differs |
|---|---|---|
| Hobe Sound | Mainland community across the water to the west | Shares ZIP code 33455 with the town, which uses a Hobe Sound mailing address (Note 2) |
| Hobe Sound National Wildlife Refuge | Federal refuge at the island’s northern end | Wikipedia gives the refuge boundary as the town’s northern limit, and its island article says the town includes part of the refuge’s southern portion (Note 2) |
| Manalapan | Atlantic barrier-island town in Palm Beach County | 419 residents at the 2020 Census against 804 in Jupiter Island; a different county with its own rules (Note 2) |
Working with ABODE
How does ABODE help in Jupiter Island?
For an oceanfront town where each parcel has its own survey, flood and control-line questions, ABODE starts with those facts and then compares recent comparable sales. We are a Florida-licensed brokerage that represents both buyers and sellers, and we keep conversations private.
Keep reading
Which related guides should you read next?
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Florida oceanfront due diligence
The state, federal and local lines that cross an oceanfront lot, and the order to test them
Hobe Sound
Martin County Census place: jurisdiction check, county flood and 50% rule, control line and permit steps
Questions
Jupiter Island real estate: frequently asked questions
What is Jupiter Island, Florida?
Jupiter Island is a barrier-island town in Martin County, Florida (ZIP 33455), on the Treasure Coast (Note 2). It had 804 residents at the 2020 Census, as reported by Wikipedia (Note 2). The town reports nine miles of Atlantic Ocean frontage, with the Intracoastal Waterway to the west (Note 1).
Is Jupiter Island the same as Jupiter, Florida?
No. The Town of Jupiter Island is a separate municipality in Martin County, and its southern edge is the Palm Beach County line (Note 2). Because rules, taxes and permits are set by the municipality, confirm which one a property is in.
What is the Jupiter Island Beach Protection District?
The town’s website says the district was established in 1982 as a separate taxing unit to administer and finance the town’s beach renourishment and restoration activities (Note 1). Ask the town and the county how it applies to a specific parcel.
Does Jupiter Island have a coastal construction control line?
Florida law bars construction seaward of a state-established control line without authorization. The state sets control lines county by county; ask FDEP whether a line is established where the parcel sits. Whether a particular parcel is seaward of the line depends on the parcel, so check with the Florida Department of Environmental Protection before you rely on any plan (Note 3).
Who handles building permits in Jupiter Island?
The town’s Building Department administers zoning, permitting, plan review, inspections, contractor licensing and code enforcement, and it publishes an Island Zoning Map (Note 1). Contact the town for the current requirements for a specific address.
Does ABODE International Realty work in Jupiter Island?
ABODE International Realty is a Florida-licensed brokerage with its office at 801 West Bay Drive, Suite 324, in Largo. To discuss a purchase or sale in Jupiter Island, request a consultation and an ABODE advisor will respond.
Private consultation
Request a private Jupiter Island consultation
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Sources and notes
- Town of Jupiter Island (official site, Building Department, Beach Protection and Island Zoning Map). Source for incorporation in 1953, nine miles of ocean frontage, land area, Town Hall address, Building Department functions and the Beach Protection District. Town pages change; confirm current text. Checked October 4, 2026
- Jupiter Island, Florida (Wikipedia). Secondary source (citing the 2020 Census) for population, area, boundaries, Treasure Coast placement, ZIP sharing and commission-manager government. Wikipedia is a secondary source; verify population and area against the Census Bureau before relying on them
- Florida Statutes, section 161.053 (Coastal construction control lines), and Florida DEP CCCL program. Once a coastal construction control line is established, construction seaward of it needs state authorization. The statute does not name counties; the Department of Environmental Protection sets the lines county by county. Confirm whether a specific parcel is seaward of the line with DEP. Checked October 4, 2026.
- FEMA Flood Map Service Center. Look up the flood zone for any address. Flood zone is parcel specific