Cities and Towns in Suffolk County, New York
Founded in 1683, Suffolk County is one of 62 counties in the state of New York. Historically, Suffolk County was one of 12 original counties created in the New York colony. The city of Riverhead is the county seat. With FIPS code of 103, Suffolk County has a population of 1,526,344 and area of 2,373 square miles (6,146 km²).
List of all cities in Suffolk County, NY alphabetically
| City/Town | Postal Code | Area Code |
| Abmps, NY | 11750 | 631 |
| Amagansett, NY | 11930 | 631 |
| Amity Harbor, NY | 11701 | 631 |
| Amityville, NY | 11701 | 631 |
| 11708 | 631 | |
| Aquebogue, NY | 11931 | 631 |
| Asharoken, NY | 11768 | 631 |
| Babylon, NY | 11702 | 631 |
| 11703 | 631 | |
| 11704 | 631 | |
| 11707 | 631 | |
| Baiting Hollow, NY | 11933 | 631 |
| Bay Hills, NY | 11743 | 631 |
| Bay Point, NY | 11963 | 631 |
| Bay Port, NY | 11705 | 631 |
| Bay Shore, NY | 11706 | 631 |
| Bayberry Point, NY | 11751 | 631 |
| Baycrest, NY | 11743 | 631 |
| Bayport, NY | 11705 | 631 |
| Bayshore, NY | 11706 | 631 |
| Beach Hampton, NY | 11930 | 631 |
| Beech Croft, NY | 11743 | 631 |
| Belle Terre, NY | 11777 | 631 |
| Bellport, NY | 11713 | 631 |
| Blue Point, NY | 11715 | 631 |
| Bohemia, NY | 11716 | 631 |
| Box Hill, NY | 11780 | 631 |
| Brentwood, NY | 11717 | 631 |
| Bridge Hampton, NY | 11932 | 631 |
| Brightwaters, NY | 11718 | 631 |
| Brookhaven, NY | 11719 | 631 |
| Calverton, NY | 11933 | 631 |
| Canaan Lake, NY | 11772 | 631 |
| Captree Island, NY | 11702 | 631 |
| Carver Park, NY | 11980 | 631 |
| Center Moriches, NY | 11934 | 631 |
| Center Port, NY | 11721 | 631 |
| Centereach, NY | 11720 | 631 |
| Centerport, NY | 11721 | 631 |
| Central Islip, NY | 11722 | 631 |
| 11749 | 631 | |
| 11760 | 631 | |
| Cherry Grove, NY | 11782 | 631 |
| Cold Spring Harbor, NY | 11724 | 631 |
| Cold Spring Hills, NY | 11743 | 631 |
| Commack, NY | 11725 | 631 |
| Copiague, NY | 11726 | 631 |
| Coram, NY | 11727 | 631 |
| Corneil Estates, NY | 11770 | 631 |
| Crab Meadow, NY | 11768 | 631 |
| CTR Moriches, NY | 11934 | 631 |
| Cutchogue, NY | 11935 | 631 |
| Davis Park, NY | 11772 | 631 |
| Deer Park, NY | 11729 | 631 |
| Deer Wells, NY | 11780 | 631 |
| Deerpark, NY | 11729 | 631 |
| Dix Hills, NY | 11746 | 631 |
| 11747 | 631 | |
| Don Jagoda Assc Inc, NY | 11775 | 631 |
| East Hampton, NY | 11937 | 631 |
| East Islip, NY | 11730 | 631 |
| East Marion, NY | 11939 | 631 |
| East Moriches, NY | 11940 | 631 |
| East Northport, NY | 11731 | 631 |
| East Patchogue, NY | 11772 | 631 |
| East Quogue, NY | 11942 | 631 |
| East Setauket, NY | 11733 | 631 |
| East Yaphank, NY | 11967 | 631 |
| Eastport, NY | 11941 | 631 |
| Eatons Neck, NY | 11768 | 631 |
| Edgewood, NY | 11717 | 631 |
| Elwood, NY | 11731 | 631 |
| Fair Harbor, NY | 11706 | 631 |
| Farmingville, NY | 11738 | 631 |
| Fire Island, NY | 11770 | 631 |
| Fire Island Pines, NY | 11782 | 631 |
| Fishers Island, NY | 06390 | 631 |
| Flanders, NY | 11901 | 631 |
| Flowerfield, NY | 11780 | 631 |
| Fort Salonga, NY | 11768 | 631 |
| Gilgo Beach, NY | 11702 | 631 |
| Gordon Heights, NY | 11763 | 631 |
| Great River, NY | 11739 | 631 |
| Greenlawn, NY | 11740 | 631 |
| Greenport, NY | 11944 | 631 |
| Halesite, NY | 11743 | 631 |
| Hampton Bays, NY | 11946 | 631 |
| Harbor Heights, NY | 11743 | 631 |
| Hauppauge, NY | 11749 | 631 |
| 11788 | 631 | |
| Head of the Harbor, NY | 11780 | 631 |
| 11790 | 631 | |
| Heer Park, NY | 11757 | 631 |
| Hither Plns, NY | 11954 | 631 |
| Holbrook, NY | 11741 | 631 |
| Holtsville, NY | 00501 | 631 |
| 00544 | 631 | |
| 11742 | 631 | |
| Hunt, NY | 11743 | 631 |
| Huntingtn Station, NY | 11746 | 631 |
| 11747 | 631 | |
| 11750 | 631 | |
| Huntington, NY | 11743 | 631 |
| Huntington Bay, NY | 11743 | 631 |
| Huntington Station, NY | 11746 | 631 |
| 11747 | 631 | |
| 11750 | 631 | |
| I R S Service Center, NY | 00501 | 631 |
| IRS Service Center, NY | 00544 | 631 |
| Islandia, NY | 11749 | 631 |
| 11760 | 631 | |
| Islip, NY | 11751 | 631 |
| Islip Manor, NY | 11751 | 631 |
| Islip Terrace, NY | 11752 | 631 |
| Jamesport, NY | 11947 | 631 |
| Kings Park, NY | 11754 | 631 |
| Kismet, NY | 11706 | 631 |
| Knollwood Beach, NY | 11743 | 631 |
| Lake Grove, NY | 11755 | 631 |
| Lake Panamoka, NY | 11961 | 631 |
| Lake Ronkonkoma, NY | 11779 | 631 |
| Lake Ronkonkoma Heights, NY | 11779 | 631 |
| Laurel, NY | 11948 | 631 |
| Lindenhurst, NY | 11757 | 631 |
| Lloyd Harbor, NY | 11743 | 631 |
| Lloyd Neck, NY | 11743 | 631 |
| Manor Park, NY | 11950 | 631 |
| Manorville, NY | 11949 | 631 |
| Marconiville, NY | 11726 | 631 |
| Mastic, NY | 11950 | 631 |
| Mastic Beach, NY | 11951 | 631 |
| Mattituck, NY | 11952 | 631 |
| Medford, NY | 11763 | 631 |
| Melville, NY | 11747 | 631 |
| 11750 | 631 | |
| 11775 | 631 | |
| Middle Island, NY | 11953 | 631 |
| Miller Place, NY | 11764 | 631 |
| Montauk, NY | 11954 | 631 |
| Moriches, NY | 11955 | 631 |
| Mount Sinai, NY | 11766 | 631 |
| Nassau Point, NY | 11935 | 631 |
| Nesconset, NY | 11767 | 631 |
| New Suffolk, NY | 11956 | 631 |
| Nissequogue, NY | 11780 | 631 |
| North Amityville, NY | 11701 | 631 |
| North Babylon, NY | 11703 | 631 |
| North Bay Shore, NY | 11706 | 631 |
| North Bellport, NY | 11713 | 631 |
| North Haven, NY | 11963 | 631 |
| North Lindenhurst, NY | 11757 | 631 |
| North Patchogue, NY | 11772 | 631 |
| Northampton, NY | 11901 | 631 |
| Northport, NY | 11768 | 631 |
| Oak Beach, NY | 11702 | 631 |
| Oak Island, NY | 11702 | 631 |
| Oakdale, NY | 11769 | 631 |
| Ocean Bay Park, NY | 11770 | 631 |
| Ocean Beach, NY | 11770 | 631 |
| Old Field, NY | 11733 | 631 |
| Old Mastic, NY | 11951 | 631 |
| Old Westfield, NY | 11784 | 631 |
| Orient, NY | 11957 | 631 |
| Orient Point, NY | 11957 | 631 |
| P J S, NY | 11776 | 631 |
| 11777 | 631 | |
| Panamoka, NY | 11961 | 631 |
| Patchogue, NY | 11772 | 631 |
| Peconic, NY | 11958 | 631 |
| Pine Air, NY | 11717 | 631 |
| Pine Neck, NY | 11963 | 631 |
| Pjs, NY | 11776 | 631 |
| Pjs, NY | 11777 | 631 |
| Point Jefferson Station, NY | 11777 | 631 |
| Point O Woods, NY | 11706 | 631 |
| Poquott, NY | 11733 | 631 |
| Port Jefferson, NY | 11777 | 631 |
| Port Jefferson Station, NY | 11776 | 631 |
| 11777 | 631 | |
| Promised Land, NY | 11930 | 631 |
| Quioque, NY | 11978 | 631 |
| Quogue, NY | 11959 | 631 |
| Remsenburg, NY | 11960 | 631 |
| Ridge, NY | 11961 | 631 |
| Riverhead, NY | 11901 | 631 |
| Rivers Edge, NY | 11950 | 631 |
| Rocky Point, NY | 11778 | 631 |
| Ronkonkoma, NY | 11749 | 631 |
| 11779 | 631 | |
| Sag Harbor, NY | 11963 | 631 |
| Sagaponack, NY | 11962 | 631 |
| Saint James, NY | 11780 | 631 |
| Saltaire, NY | 11706 | 631 |
| San Remo, NY | 11754 | 631 |
| Sayville, NY | 11782 | 631 |
| Scotts Beach, NY | 11789 | 631 |
| Seaview, NY | 11770 | 631 |
| Selden, NY | 11784 | 631 |
| Setauket, NY | 11733 | 631 |
| Shelter Island, NY | 11964 | 631 |
| Shelter Island Heights, NY | 11965 | 631 |
| Shirley, NY | 11967 | 631 |
| Shoreham, NY | 11786 | 631 |
| Smiths Point, NY | 11967 | 631 |
| Smithtown, NY | 11787 | 631 |
| Smithtown, NY | 11788 | 631 |
| So Huntington, NY | 11746 | 631 |
| Sound Beach, NY | 11789 | 631 |
| South Hampton, NY | 11968 | 631 |
| 11969 | 631 | |
| South Hauppauge, NY | 11722 | 631 |
| South Haven, NY | 11719 | 631 |
| South Huntington, NY | 11746 | 631 |
| South Jamesport, NY | 11970 | 631 |
| South Setauket, NY | 11720 | 631 |
| Southampton, NY | 11968 | 631 |
| 11969 | 631 | |
| Southold, NY | 11971 | 631 |
| Speonk, NY | 11972 | 631 |
| Stony Brook, NY | 11790 | 631 |
| 11794 | 631 | |
| Strongs Neck, NY | 11733 | 631 |
| Sunken Meadow, NY | 11768 | 631 |
| Suny Stony Brook, NY | 11794 | 631 |
| Terryville, NY | 11776 | 631 |
| Upton, NY | 11973 | 631 |
| Wading River, NY | 11792 | 631 |
| Wainscott, NY | 11975 | 631 |
| Water Mill, NY | 11976 | 631 |
| Watermill, NY | 11976 | 631 |
| West Babylon, NY | 11704 | 631 |
| 11707 | 631 | |
| West Bay Shore, NY | 11706 | 631 |
| West Brentwood, NY | 11717 | 631 |
| West Gilgo Beach, NY | 11702 | 631 |
| West Hampton, NY | 11977 | 631 |
| West Hampton Beach, NY | 11978 | 631 |
| West Hills, NY | 11743 | 631 |
| West Islip, NY | 11795 | 631 |
| West Sayville, NY | 11796 | 631 |
| Westhampton, NY | 11977 | 631 |
| Westhampton Beach, NY | 11978 | 631 |
| Westhampton Dunes, NY | 11978 | 631 |
| Wheatley Heights, NY | 11798 | 631 |
| Wildwood, NY | 11792 | 631 |
| Willwood, NY | 11792 | 631 |
| Wincoma, NY | 11743 | 631 |
| Wtr Mill, NY | 11976 | 631 |
| Wyandanch, NY | 11798 | 631 |
| Yaphank, NY | 11980 | 631 |
Major Cities and Towns in Suffolk County, New York
Huntington
Area, Population, Zip Codes, Latitude and Longitude
- Area: 96.3 square miles
- Population: 204,000 (2020 Census)
- Zip Codes: 11721, 11743, 11746, 11749
- Latitude: 40.8680° N
- Longitude: 73.4247° W
Location and History
Huntington is located in the western part of Suffolk County, on the North Shore of Long Island, just east of Nassau County. It was one of the original towns established by the English in 1653 and was named after the English town of Huntington. Its early economy was based on agriculture, shipbuilding, and fishing. By the 19th century, Huntington had become an important commercial center, thanks to its strategic location along the Long Island Sound and access to major shipping routes. The town played a significant role in American Revolution history, with Huntington residents supporting the Continental Army. In the 20th century, Huntington evolved from a rural farming community to a suburban residential area, attracting families seeking access to New York City while enjoying the charm of Long Island’s coastline. Huntington’s downtown area, which includes the Harbor and Main Street, remains a vibrant cultural hub with art galleries, boutiques, and restaurants. With a mix of historic charm, suburban convenience, and coastal beauty, Huntington remains one of Suffolk County’s most desirable towns.
Major Schools and Landmarks
Huntington is served by the Huntington Union Free School District, which includes Huntington High School and several elementary and middle schools. The town also has access to higher education institutions such as Long Island University and Stony Brook University. Notable landmarks include the Huntington Lighthouse, a symbol of the town’s maritime heritage, and The Paramount Theater, which hosts live performances and concerts. The Huntington Historical Society offers insights into the town’s past, while the Huntington Harbor provides scenic waterfront views. Heckscher Park, located in the heart of the town, offers green space for picnicking, sports, and outdoor events. Caumsett State Historic Park Preserve, a former estate turned park, offers trails, beaches, and historic buildings to explore. Huntington’s bustling downtown features a mix of shops, restaurants, and theaters, making it a lively cultural destination. The town also hosts the Long Island Fall Festival, an annual event celebrating local culture, food, and music.
Islip
Area, Population, Zip Codes, Latitude and Longitude
- Area: 59.0 square miles
- Population: 335,000 (2020 Census)
- Zip Codes: 11706, 11702, 11751, 11762
- Latitude: 40.7300° N
- Longitude: 73.2050° W
Location and History
Islip is located on the south shore of Long Island, bordered by the Great South Bay and the Long Island Rail Road. Established in 1683, Islip was originally settled by Dutch colonists and later became part of the larger colonial settlement of Suffolk County. The town grew rapidly in the 19th century as agriculture and fishing became the dominant industries, with the Great South Bay providing fertile grounds for shellfish harvesting and boating. The town also became known as a summer retreat for wealthy New Yorkers in the early 20th century, a trend that persisted until suburban development transformed the area. Today, Islip is a suburban community that benefits from its proximity to John F. Kennedy International Airport and Long Island MacArthur Airport, as well as easy access to New York City. The town is known for its parks, beaches, and family-friendly atmosphere, as well as its mix of residential neighborhoods and small businesses.
Major Schools and Landmarks
Islip is served by the Islip Union Free School District, which includes Islip High School and several other elementary and middle schools. The town also has access to Suffolk County Community College and LIU Post for higher education. Notable landmarks include the Islip Town Beach, a popular spot for swimming, sunbathing, and picnicking, as well as the Long Island Maritime Museum, which celebrates the region’s rich maritime history. The Connetquot River State Park Preserve offers hiking, fishing, and bird-watching opportunities. Islip’s Main Street is lined with a variety of restaurants, shops, and small businesses, making it a hub for local commerce and culture. Bayard Cutting Arboretum State Park is another local attraction, featuring landscaped gardens and nature trails along the Connetquot River. The Islip Arts Council hosts regular cultural events, and the Fire Island Lighthouse offers spectacular views of the Atlantic Ocean and Great South Bay.
Riverhead
Area, Population, Zip Codes, Latitude and Longitude
- Area: 53.5 square miles
- Population: 33,000 (2020 Census)
- Zip Codes: 11901, 11933
- Latitude: 40.9152° N
- Longitude: 72.6620° W
Location and History
Riverhead is located in the northeastern part of Suffolk County, at the confluence of the Peconic River and the Long Island Sound. The town was settled in the late 1600s and was officially established in 1792. Early industries in Riverhead included agriculture, fishing, and shipbuilding, with the Peconic River serving as an important transportation route for goods and people. By the late 19th century, Riverhead became a center of commerce and transportation, particularly with the arrival of the Long Island Rail Road, making it an important hub for the surrounding agricultural communities. The town’s location along the North Fork of Long Island also helped establish it as a gateway to the region’s burgeoning wine industry. In recent years, Riverhead has developed into a commercial and cultural center, with major shopping centers, entertainment complexes, and wineries attracting tourists and residents alike. Despite growth, Riverhead retains its historical roots, with several preserved buildings and a vibrant downtown area.
Major Schools and Landmarks
Riverhead is served by the Riverhead Central School District, which includes Riverhead High School and several middle and elementary schools. The town is also home to Suffolk County Community College Riverhead Campus, providing local higher education opportunities. Key landmarks include The Long Island Aquarium, which features marine life exhibits and interactive experiences for visitors of all ages. The Suffolk Theater, a historic venue, hosts concerts, performances, and special events. The Peconic Riverfront Park offers beautiful views of the river, along with walking trails and picnic areas. Riverhead is also a gateway to the North Fork Wine Region, where visitors can explore numerous vineyards and wineries. The Roanoke Avenue Historic District features several Victorian-era buildings, while The Suffolk County Historical Society Museum highlights the area’s history, particularly in farming and maritime industries. The East End Arts Council offers programs in visual and performing arts, and Splish Splash Water Park is a popular family-friendly destination.
Smithtown
Area, Population, Zip Codes, Latitude and Longitude
- Area: 53.8 square miles
- Population: 117,000 (2020 Census)
- Zip Codes: 11787, 11780, 11782
- Latitude: 40.8584° N
- Longitude: 73.1905° W
Location and History
Smithtown is located on the North Shore of Long Island, about 40 miles east of New York City. The town was first settled in 1665 by the Smith family, who purchased land from the Setauket Native Americans. Smithtown’s economy initially revolved around agriculture, particularly farming and fishing, but it began to grow in the 19th century with the arrival of the Long Island Rail Road. The town’s proximity to Long Island Sound allowed for a thriving maritime industry, while its fertile soil led to a strong agricultural presence. Smithtown incorporated as a town in 1800 and quickly grew into a suburban community, especially after World War II. Today, it remains a primarily residential area with a mix of suburban homes, small businesses, and recreational spaces. Smithtown’s rich history, particularly its association with the Smith family and early settlement of Long Island, is reflected in its landmarks and cultural institutions.
Major Schools and Landmarks
Smithtown is served by the Smithtown Central School District, which includes Smithtown High School West and Smithtown High School East, as well as numerous elementary and middle schools. The town also has access to nearby universities such as Stony Brook University. Prominent landmarks in Smithtown include The Smithtown Historical Society, which preserves and interprets the history of the Smith family and early Long Island settlers. Nissequogue River State Park offers hiking trails, picnicking, and scenic views of the river. Smithtown Landing Country Club provides golfing and outdoor leisure activities, while The Caleb Smith State Park Preserve is a favorite destination for nature enthusiasts, offering walking trails, fishing, and bird-watching opportunities. Smithtown is also home to The Long Island Museum of American Art, History, and Carriages, which showcases the region’s rich cultural and artistic heritage. The town’s Main Street is lined with shops, restaurants, and local businesses, providing a charming setting for residents and visitors alike.
