How Big Is Hutchinson Island? Size, Map, and What's on the Barrier Island
July 5, 2026 · 8 min read · By Onias Derilus, Broker
Hutchinson Island is one of the Treasure Coast's largest barrier islands, running roughly 22 to 23 miles across Martin, St. Lucie, and Indian River counties. Here is exactly how big it is and what sits on it.
How big is Hutchinson Island? The short answer is that it runs roughly 22 to 23 miles from end to end, making it one of the largest barrier islands on Florida's Treasure Coast. It is also narrow, often just a few hundred yards to about a half-mile wide, and it stretches across parts of three counties. Pure Equity works the Treasure Coast market every day, so here is a clear picture of the island's size, layout, and what you will find along it.
Key takeaways
- Hutchinson Island is roughly 22 to 23 miles long and a narrow barrier island, generally a few hundred yards to about a half-mile wide.
- It spans Martin, St. Lucie, and Indian River counties, with the Atlantic on the east and the Indian River Lagoon (Intracoastal Waterway) on the west.
- The Fort Pierce Inlet splits it into North and South Hutchinson Island; the St. Lucie Inlet bounds the south end.
- Communities include Fort Pierce, Jensen Beach, the Stuart beaches, and Sailfish Point; the St. Lucie Nuclear Power Plant also sits on the island.
How big is Hutchinson Island, exactly?
What a long, narrow barrier island means day to day
The dimensions are the usual answer and the shape is what actually affects living there, so it is worth translating the geography into daily life.
A long narrow island means everything is linear. There is no grid, so journeys run north or south along one main road, and a closure or an incident on it has no easy alternative. It also means almost everywhere is close to water on both sides, the Atlantic on one and the Indian River Lagoon on the other, which is the appeal and the exposure at once.
The practical consequence is that where you sit along the length matters more than it would on the mainland. Distance to your nearest bridge determines your daily drive far more than distance to any town centre does.
Bridges are the thing to check before buying
Access to a barrier island runs through a small number of crossings, and that dependency shapes ordinary life in ways buyers underestimate.
Establish which bridge you would actually use, how far it is from the specific property, and what the route looks like at the times you would travel. Seasonal traffic is heavier, and crossings that open for marine traffic add delay that has nothing to do with congestion.
It also matters for services. Emergency response, deliveries and contractors all cross the same bridges, and tradespeople sometimes price island work higher because of the travel. Ask about that before budgeting a renovation.
Evacuation is a normal part of island ownership
Barrier islands are typically among the first areas ordered to evacuate when a storm threatens, and for a permanent resident that is a lifestyle factor rather than a technicality.
It can mean leaving more often than mainland neighbours, sometimes for events that pass without consequence. Plan for where you would go and what you would take, and understand that returning is controlled by the authorities rather than by you.
Check the evacuation zone for the specific address with the county emergency management office rather than assuming from the island. Zones vary along the length, and the answer belongs in your decision rather than in a folder.
The market is small, slow and split by side
Hutchinson Island currently shows roughly 83 homes for sale at a median asking price near $607,000 and about $371 per square foot, averaging around 212 days on market.
That 212 day figure is the number to weigh. Against Stuart at 104 and Jensen Beach at 109, the island takes roughly twice as long to sell. Eighty three listings is also a small inventory, so buyers should expect to wait for the right property rather than for the market.
Within the island, oceanfront and riverfront are different products at different prices, and a great deal of the inventory is condominium rather than single family. Where it is, the building's fee, reserve study and funding plan matter more to your cost than the unit does, since Florida now requires qualifying buildings to fund reserves rather than waive them.
Owning here costs more than owning inland
Three items run higher and belong in the budget before the purchase. Wind and flood insurance are separate policies and both are more expensive on a barrier island, priced on roof age, opening protection and elevation. Salt air shortens the life of roofs, windows, railings, screens and air conditioning equipment, which raises maintenance permanently. And property tax resets to your purchase price on the January 1 after you buy rather than continuing at the seller's capped figure.
Quote insurance on the specific address during your inspection period rather than budgeting from an area estimate, because on the coast the spread between two properties is wide.
More common questions
Which counties does the island touch?
It runs along more than one county, so the county affects tax, schools and services depending on where a property sits. Confirm for the specific address.
Is it a good place to live full time?
It suits people who genuinely use the water and accept bridge dependency and evacuations. For occasional beach use, the mainland is cheaper and far more liquid.
Why do properties take so long to sell?
A small, specific and frequently out of state buyer pool. At about 212 days on average, patience is the normal condition rather than a warning sign.
Sources put the length of Hutchinson Island at about 22 to 23 miles. State Road A1A runs most of the island's length and exits roughly 22 miles north of the Stuart beaches, which is the figure most often cited for the island itself. You will occasionally see a larger number quoted, around 28 miles, but that appears to describe the broader barrier chain rather than Hutchinson Island proper, so 22 to 23 miles is the more accurate answer for the island as it is usually defined.
Width is the other half of the story. Like most barrier islands, Hutchinson Island is thin, ranging from a few hundred yards to about a half-mile across in most places. That narrow shape is why so many properties here sit within a short walk of either the ocean or the lagoon, and in a few spots reach from water to water.
Which counties does it cross?
Hutchinson Island is really made up of two barrier islands stretching along the coast of Martin, St. Lucie, and Indian River counties. The southern portion, roughly a third of the island, lies in Martin County near Stuart. The larger central and northern stretch sits in St. Lucie County around Fort Pierce, and the island continues north into Indian River County. Along its entire length, the Atlantic Ocean borders the east side and the Indian River Lagoon, part of the Intracoastal Waterway, separates it from the mainland to the west.
North Hutchinson Island, South Hutchinson Island, and Orchid Island
The naming trips people up, so it is worth sorting out. The Fort Pierce Inlet cuts through the island and divides it into two sections known as North Hutchinson Island and South Hutchinson Island. To add one more wrinkle, in 1985 Indian River County renamed its portion of the northern island "Orchid Island" to distinguish it from development on the St. Lucie County side, so you will see North Hutchinson Island and Orchid Island used for overlapping stretches of the northern segment. At the very south end, the St. Lucie Inlet closes off the island near Stuart.
What is on the island
For its size, Hutchinson Island holds a lot of variety. Fort Pierce anchors the South Hutchinson area with public beaches and the Fort Pierce Inlet. Jensen Beach and the Stuart beaches fill in the Martin County end with a mix of condos, oceanfront homes, and small beach neighborhoods. Sailfish Point, a gated community at the southern tip near the St. Lucie Inlet, is one of the island's best-known luxury addresses. The island also hosts the St. Lucie Nuclear Power Plant, a Florida Power and Light station a few miles southeast of Fort Pierce that has operated here since the late 1970s.
Living on Hutchinson Island
A long, narrow barrier island means a specific kind of real estate. Inventory leans toward oceanfront and lagoon-front condos, beach houses, and a handful of gated communities, with values driven by water access, views, and how close a property sits to an inlet. If you are weighing the barrier island against the mainland, our guides to living in Stuart and Port St. Lucie lay out the tradeoffs, and you can browse waterfront homes across the region. For a look at another well-known Palm Beach County coastal town to the south, see our guide to where Juno Beach is.
Frequently asked questions
How long is Hutchinson Island?
Hutchinson Island is about 22 to 23 miles long, one of the larger barrier islands on the Treasure Coast. A larger 28-mile figure sometimes appears but generally refers to the broader barrier chain rather than the island itself.
What counties is Hutchinson Island in?
It spans Martin, St. Lucie, and Indian River counties. The southern end is in Martin County near Stuart, the central and northern stretch is in St. Lucie County around Fort Pierce, and it continues north into Indian River County.
What is the difference between North and South Hutchinson Island?
The Fort Pierce Inlet divides the island into two sections. South of the inlet is South Hutchinson Island, and north of it is North Hutchinson Island. Indian River County renamed its portion of the northern island "Orchid Island" in 1985.
Is there a power plant on Hutchinson Island?
Yes. The St. Lucie Nuclear Power Plant, operated by Florida Power and Light, sits on the island a few miles southeast of Fort Pierce and has run since the late 1970s.
Curious about beach life on the Treasure Coast? Pure Equity can help you compare Hutchinson Island condos and beach homes against mainland Stuart and Jensen Beach. Talk to our team or start with our waterfront homes collection.
