Suffolk County, New York Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

43 cities

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Brookhaven1487,160484,578-0.24%1,876259.6Town
Islip2335,258339,077-0.46%3,249103.2Town
Babylon3216,046217,663-0.46%4,13352.3Town
Huntington4202,264203,585-0.32%2,15194.0Town
Smithtown5114,992115,897-0.4%2,13953.8Town
Southampton669,85968,8420.23%503138.8Town
Riverhead735,56135,815-0.45%52867.4Town
East Hampton828,88528,3630.42%38874.4Town
Lindenhurst926,93227,091-0.15%7,1883.7Village
Southold1023,76923,735-0.36%44253.8Town
Patchogue1112,32512,373-0.1%5,4542.3Village
Babylon1212,08512,168-0.17%5,0122.4Village
Lake Grove1311,01511,038-0.05%3,7392.9Village
Amityville149,6159,4630.4%4,6772.1Village
Port Jefferson158,1847,9630.68%2,6723.1Village
Northport167,2537,332-0.27%3,1492.3Village
Southampton174,6564,5380.63%7146.5Village
Greenport184,3374,461-0.94%23318.6Town
Islandia193,6473,5650.55%1,6472.2Village
Lloyd Harbor203,5283,563-0.25%3789.3Village
Shelter Island213,3053,2530.4%27112.2Town
Brightwaters223,1643,182-0.16%3,2751.0Village
Sag Harbor232,7962,7520.4%1,5651.8Village
Greenport242,5492,596-0.47%2,6830.9Village
Westhampton Beach252,1982,1740.27%7482.9Village
Bellport262,1952,1950%1,5141.4Village
Village Branch271,7431,765-0.34%1,8350.9Village
Quogue281,7091,6590.71%4104.2Village
Nissequogue291,6071,6030.06%4223.8Village
East Hampton301,5571,5110.71%3264.8Village
Head Harbor311,4621,480-0.34%5212.8Village
Huntington Bay321,4261,4250%1,4291.0Village
North Haven331,1831,1490.68%4462.7Village
Poquott34922928-0.22%2,1050.4Village
Old Field35896908-0.33%4332.1Village
Belle Terre367857840%8870.9Village
Sagaponack377377310.14%1674.4Village
Asharoken386055930.5%4251.4Village
Shoreham395225210%1,1500.5Village
Ocean Beach401681660%1,1910.1Village
West Hampton Dunes411181140.85%3770.3Village
Saltaire421111100%4760.2Village
Dering Harbor4335340%1420.2Village

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Suffolk County, New York?

Brookhaven is the largest city in Suffolk County.

What is the smallest city in Suffolk County, New York?

Dering Harbor is the smallest city in Suffolk County.

How many cities are in Suffolk County?

There are 43 cities in Suffolk County, New York.

Frequently Asked Questions