Is Merritt Island Really an Island? Peninsula, Barrier Island, and What It Means

Not quite. Merritt Island is a peninsula, not a true island. The Indian River Lagoon runs along its west side and the Banana River and Mosquito Lagoon along its east side, but its northern end connects to the mainland in southern Volusia County. It is also not a barrier island; Cocoa Beach and Cape Canaveral sit on the barrier island to the east.

Last updated November 3, 2026.

"Is Merritt Island really an island?" and "Is Merritt Island a barrier island?" come up again and again when people start looking at Merritt Island real estate. The name says island, the drive in crosses a causeway, and water shows up on almost every side. The geography is a little more interesting than the name, and it affects how you get around, how hurricane planning works, and what to check on any home you are considering.

Why is Merritt Island called an island if it is a peninsula?

Because for most of its length it behaves like one. From the Barge Canal south to Dragon Point, the developed part of Merritt Island is surrounded by water and reached by bridges, so the name stuck long before anyone worried about the technical definition.

The land connection is far to the north, past Kennedy Space Center and the Merritt Island National Wildlife Refuge, near the Volusia County line. The Haulover Canal, a man-made channel, cuts through that northern area to link the Indian River and Mosquito Lagoon. Most of that northern land is federal property, and much of it is closed to the public, so the everyday experience for people living in Central and South Merritt Island is an island experience: you cross a bridge to reach the mainland and another to reach the beach.

On the east side, Sykes Creek and Newfound Harbor split the land further, which is a big reason so many Merritt Island neighborhoods have canal and river frontage. At the southern tip, Dragon Point marks the spot where the Indian River and the Banana River meet.

Is Merritt Island a barrier island?

No, not in the usual sense. The barrier island in this part of Brevard County is the strip to the east that holds Cape Canaveral, Cocoa Beach, Satellite Beach, and Indian Harbour Beach, with the Atlantic on one side and the Banana River on the other.

There is one nuance worth knowing. The U.S. Fish and Wildlife Service describes Merritt Island and Cape Canaveral together as a barrier island complex that formed over the Pleistocene and Holocene periods. So geologists group them, but in everyday real estate terms Merritt Island is the land between the rivers, and the beach towns are on the barrier island. That is why you will hear Merritt Island described as river living with the beach a short drive across the Banana River.

How do you get on and off Merritt Island?

By bridge. Every public road onto Merritt Island from the mainland or the beach crosses water, and the bridge you use most will shape your daily drive.

Crossing	Road	Connects Merritt Island to
Hubert H. Humphrey Bridge (Indian River)	SR 520	Cocoa on the mainland
Willard Peebles Bridge (Banana River)	SR 520	Cocoa Beach
Bennett Causeway	SR 528	Cocoa and I 95 to the west, Port Canaveral and Cape Canaveral to the east
Mathers Bridge (Banana River)	CR 3	Indian Harbour Beach from South Merritt Island
NASA Causeway	SR 405	Titusville and Kennedy Space Center
A. Max Brewer Bridge	Max Brewer Memorial Parkway	Titusville from North Merritt Island

Inside the island, the Christa McAuliffe Bridge on North Courtenay Parkway crosses the Barge Canal, and SR 520 and Sykes Creek Parkway both cross Sykes Creek. If you are comparing homes in different parts of the island, it helps to drive from each one to the bridge you would use for work. Our bridge commute test guide walks through how to do that during a showing trip.

What are North, Central, and South Merritt Island?

They are informal local terms, not separate towns. Most people use SR 528 and SR 520 as the dividing lines.

1. North Merritt Island is generally the area north of SR 528. Past the Barge Canal it turns rural, with larger lots, conservation land, and Kennedy Space Center to the north and east.
2. Central Merritt Island sits between SR 528 and SR 520 and holds much of the shopping, services, and established subdivisions.
3. South Merritt Island runs south of SR 520 toward Dragon Point, with river frontage, canal neighborhoods such as Diana Shores and Waterway Manor, and a long stretch of homes along South Tropical Trail.

All three are part of unincorporated Brevard County. For a closer look at how they compare, see South vs North Merritt Island and our Merritt Island neighborhoods guide.

Does being on a peninsula change hurricane planning?

Yes. Brevard County Emergency Management places Merritt Island in evacuation Zone A, the first zone called to evacuate when an Atlantic approaching hurricane threatens the county, along with the barrier islands and some low lying mainland areas.

The county explains why: storm surge can affect causeway and bridge approaches, and it notes that high profile vehicles such as fire trucks and ambulances should not cross bridges when winds are above 40 miles per hour. In practice, that means the bridges that make Merritt Island easy to live on are also the reason the whole island is planned as a unit for evacuations. Florida's Know Your Zone tool and the county's map let you confirm the zone for an exact address. We cover routes and alerts in more detail in the Merritt Island evacuation zone guide.

An evacuation zone is not the same thing as a flood zone. Evacuation zones are about storm surge risk to the area, while FEMA flood zones are mapped parcel by parcel and drive flood insurance requirements for many mortgages. Look up both before you write an offer.

What should buyers check because of the geography?

The water that defines Merritt Island is also what you want to research on each property. A short checklist:

1. Pull the FEMA flood zone for the parcel on the FEMA Flood Map Service Center and ask the seller for any elevation certificate.
2. Confirm the evacuation zone and plan a primary and alternate route off the island.
3. Get flood and wind insurance quotes early, during your inspection period, not after.
4. Drive the route to your most used bridge at the times you would travel.
5. On waterfront homes, check seawall condition, dock permits, and whether a fixed bridge limits the boat you can keep. Our sister site, Merritt Island Waterfront Living, goes deep on those waterfront checks.

From my side as a Brevard County Realtor, the island question usually turns into a more practical one: which bridge will you cross most, and what does the water near this home mean for insurance? Sorting those out early makes the rest of the home search much clearer. If you are relocating, including a military PCS move to Patrick Space Force Base, the Merritt Island relocation guide is a good next stop.

Frequently asked questions

Is Merritt Island an actual island?

No. Merritt Island is a peninsula. It is bordered by the Indian River Lagoon to the west and the Banana River and Mosquito Lagoon to the east, but it connects to the mainland at its far northern end in southern Volusia County.

Is Merritt Island on the beach?

No. Merritt Island sits between the Indian River and the Banana River. The Atlantic beaches are on the barrier island to the east, in towns like Cocoa Beach and Cape Canaveral, reached over SR 520 or SR 528.

Is Merritt Island a barrier island?

Not in everyday terms. The barrier island is the beach strip to the east. The U.S. Fish and Wildlife Service does describe Merritt Island and Cape Canaveral together as a barrier island complex from a geologic standpoint.

What evacuation zone is Merritt Island in?

Brevard County Emergency Management includes Merritt Island in Zone A, the first zone ordered to evacuate when an Atlantic approaching hurricane threatens the county. Confirm any specific address with the county map or Florida's Know Your Zone tool.

Is Merritt Island its own city?

No. Merritt Island is an unincorporated community in Brevard County, so county government handles zoning, permits, and most local services.

Sources

• Brevard County Emergency Management: Planning for an Evacuation
• Florida Division of Emergency Management: Know Your Zone
• U.S. Fish and Wildlife Service: Merritt Island National Wildlife Refuge Comprehensive Conservation Plan
• NASA Kennedy Space Center Master Plan: Roads and Bridges
• FEMA Flood Map Service Center

Questions about a specific Merritt Island home or street? Email [email protected], call 256.479.2800, or book a 30 minute call.