Long Island, New York — Nassau & Suffolk Counties
Long Island

Suffolk County

Your comprehensive guide to Suffolk County government, elected officials, and the 18-member County Legislature.

Suffolk County is the easternmost county on Long Island and the largest by land area. Stretching from the suburban western towns to the rural and resort communities of the East End, Suffolk encompasses 10 towns with dramatically different characters — from the bustling suburbs of Huntington to the vineyards of Southold and the beaches of the Hamptons.

10
Towns
18
Legislature Districts
1.5M
Residents

Key Facts

Population
~1,525,000
County Seat
Riverhead
Municipalities
10 Towns
Legislature
18 Districts
Area
912 sq mi
Founded
1683

County-Wide Elected Officials

Executive and administrative leadership of Suffolk County

Suffolk County Legislature

18 districts representing all of Suffolk County

Suffolk County Towns

10 towns from the western suburbs to the East End

Town

Town of Babylon

A South Shore town with a bustling downtown, diverse communities, and waterfront access along the Great South Bay.

~213,000|Suffolk County
Town

Town of Brookhaven

The largest town in Suffolk County and in New York State by area, home to Stony Brook University and Brookhaven National Laboratory.

~485,000|Suffolk County
Town

Town of East Hampton

An iconic South Fork town known for its historic villages, pristine beaches, and role as a premier destination in the Hamptons.

~22,000|Suffolk County
Town

Town of Huntington

A vibrant North Shore town with a thriving downtown, cultural institutions, and a rich colonial history.

~203,000|Suffolk County
Town

Town of Islip

A large South Shore town that is home to Long Island MacArthur Airport and numerous waterfront communities.

~335,000|Suffolk County
Town

Town of Riverhead

The county seat of Suffolk County, situated at the gateway to the North and South Forks, with a growing downtown and agricultural heritage.

~36,000|Suffolk County
Town

Town of Shelter Island

A small island town between the North and South Forks accessible only by ferry, known for its natural beauty and Mashomack Preserve.

~2,500|Suffolk County
Town

Town of Smithtown

A North Shore town known for its excellent school districts, parks, and the legend of the bull that defined its borders.

~117,000|Suffolk County
Town

Town of Southampton

A South Fork town encompassing many of the famed Hamptons communities, with a history dating to 1640 as one of the oldest English settlements in New York.

~60,000|Suffolk County
Town

Town of Southold

The North Fork town celebrated for its vineyards, farmlands, and maritime traditions. Founded in 1640, it is one of the oldest towns in New York.

~22,000|Suffolk County