Mastic Beach, New York

Mastic Beach is a waterfront hamlet in the Town of Brookhaven, Suffolk County, on Long Island’s South Shore. Known for its views over the Forge River and nearby Moriches Bay, as well as its convenient access to Fire Island and Smith Point, Mastic Beach offers a relaxed coastal setting shaped by boating, fishing, and the rhythms of the bay. Briefly incorporated as a village from 2010 to 2017, it is today an unincorporated community with a distinctly maritime identity.
A Coastal Community with Character
Mastic Beach sits along the Forge River and the western reaches of Moriches Bay, giving the community strong ties to Long Island’s tidal waterways, marshes, and shoreline habitats. The area provides access to canals, creeks, marinas, and nearby preserves, including the William Floyd Estate – a National Park Service site honoring one of the signers of the Declaration of Independence.
The hamlet features a mix of waterfront homes, cottages, and modest suburban neighborhoods. While primarily residential, Mastic Beach is also close to everyday services, local eateries, and businesses that support outdoor recreation and year-round living. Its appeal comes less from a busy downtown and more from its connection to the water, wildlife, and nearby South Shore destinations.
Nature and Recreation
Just minutes away, Smith Point County Park offers one of the South Shore’s most popular ocean beaches, along with camping, fishing access, and entry to the eastern end of Fire Island National Seashore. Kayaking, paddleboarding, birdwatching, and boating are favorite activities in and around Mastic Beach. The nearby Poospatuck Reservation, home of the Unkechaug Indian Nation, adds important cultural and historical depth to the surrounding area.
Because beach operations, campground reservations, fishing rules, and historic-site hours can change by season, it is wise to check ahead before planning a visit to parks, preserves, or waterfront access points.
Getting There and Visiting
Mastic Beach is reached mainly by local South Shore roads, with Montauk Highway and William Floyd Parkway serving as key nearby routes. Long Island Rail Road service is available at the nearby Mastic-Shirley station, making the area accessible for visitors exploring Brookhaven’s bayfront communities. As with many waterfront destinations on Long Island, travel times, parking availability, and beach access details can vary in peak summer months.
Mastic Beach, New York
Mastic Beach, NY
| Category | Details |
|---|---|
| Location | Town of Brookhaven, Suffolk County, on Long Island’s South Shore |
| Population | About 13,000 residents, depending on census year and boundaries |
| Community History | Developed as a bayfront community in the early 20th century; briefly incorporated as a village from 2010 to 2017 |
| Known For | Forge River and Moriches Bay waterfront, Smith Point County Park, William Floyd Estate |
| Nearby Communities | Mastic, Shirley, Brookhaven Hamlet, and the Moriches area |
| School District | William Floyd School District |
| Recreation | Boating, fishing, paddling, beach trips, birdwatching, and nature access |
Mastic Beach, New York, offers a quieter side of Long Island’s South Shore, where waterfront scenery, local history, and access to major coastal parks all come together. Whether you are interested in boating on nearby tidal waters, exploring the William Floyd Estate, or using the hamlet as a base for Smith Point and Fire Island outings, Mastic Beach remains a distinctive and practical stop in southeastern Brookhaven.