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.