{"id":6446,"date":"2023-07-28T16:20:23","date_gmt":"2023-07-28T16:20:23","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=6446"},"modified":"2026-07-31T18:20:03","modified_gmt":"2026-07-31T18:20:03","slug":"suffolk-county-new-york","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/suffolk-county-new-york\/","title":{"rendered":"Suffolk County, New York"},"content":{"rendered":"

Suffolk County is a county in New York, United States, covering the eastern two-thirds of Long Island roughly 60 miles east of Manhattan. It had a population of 1,525,920 at the 2020 census, an estimated 1,535,909 by 2024, and covers 912 square miles (2,362 km2) of land centred near 40\u00b056\u2032N 72\u00b041\u2032W — making it the largest county by population outside New York City.<\/p>\n

Riverhead is the county seat; its postal code is 11901. The county’s 10 towns hold 32 incorporated villages and well over 200 additional hamlets and unincorporated communities, and Suffolk runs on Eastern Time. Its FIPS code is 36103.<\/p>\n

Towns & Villages in Suffolk County<\/h2>\n

Suffolk has no cities of its own — every place below is either an incorporated village or an unincorporated hamlet tracked by the Census Bureau as a CDP. The table lists the 30 largest by population; hundreds of smaller hamlets, from Cutchogue to Wading River, aren’t shown.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Place<\/th>\nType<\/th>\nTown<\/th>\nPop.<\/th>\nZIP<\/th>\n<\/tr>\n<\/thead>\n
Brentwood<\/td>\nCDP<\/td>\nIslip<\/td>\n62,387<\/td>\n11717<\/td>\n<\/tr>\n
Coram<\/td>\nCDP<\/td>\nBrookhaven<\/td>\n40,220<\/td>\n11727<\/td>\n<\/tr>\n
Central Islip<\/td>\nCDP<\/td>\nIslip<\/td>\n36,714<\/td>\n11722<\/td>\n<\/tr>\n
Commack<\/td>\nCDP<\/td>\nSmithtown<\/td>\n36,536<\/td>\n11725<\/td>\n<\/tr>\n
Huntington Station<\/td>\nCDP<\/td>\nHuntington<\/td>\n34,878<\/td>\n11746<\/td>\n<\/tr>\n
Bay Shore<\/td>\nCDP<\/td>\nIslip<\/td>\n29,244<\/td>\n11706<\/td>\n<\/tr>\n
Deer Park<\/td>\nCDP<\/td>\nBabylon<\/td>\n28,837<\/td>\n11729<\/td>\n<\/tr>\n
Lindenhurst<\/td>\nVillage<\/td>\nBabylon<\/td>\n27,148<\/td>\n11757<\/td>\n<\/tr>\n
Shirley<\/td>\nCDP<\/td>\nBrookhaven<\/td>\n26,360<\/td>\n11967<\/td>\n<\/tr>\n
Selden<\/td>\nCDP<\/td>\nBrookhaven<\/td>\n21,262<\/td>\n11784<\/td>\n<\/tr>\n
Lake Ronkonkoma<\/td>\nCDP<\/td>\nIslip \/ Brookhaven<\/td>\n18,619<\/td>\n11779<\/td>\n<\/tr>\n
Kings Park<\/td>\nCDP<\/td>\nSmithtown<\/td>\n17,085<\/td>\n11754<\/td>\n<\/tr>\n
Mastic<\/td>\nCDP<\/td>\nBrookhaven<\/td>\n15,404<\/td>\n11950<\/td>\n<\/tr>\n
Riverhead<\/td>\nCDP · seat<\/td>\nRiverhead<\/td>\n14,993<\/td>\n11901<\/td>\n<\/tr>\n
Wyandanch<\/td>\nCDP<\/td>\nBabylon<\/td>\n12,990<\/td>\n11798<\/td>\n<\/tr>\n
Babylon<\/td>\nVillage<\/td>\nBabylon<\/td>\n12,188<\/td>\n11702<\/td>\n<\/tr>\n
Patchogue<\/td>\nVillage<\/td>\nBrookhaven<\/td>\n12,000<\/td>\n11772<\/td>\n<\/tr>\n
Lake Grove<\/td>\nVillage<\/td>\nBrookhaven<\/td>\n11,072<\/td>\n11755<\/td>\n<\/tr>\n
East Setauket<\/td>\nCDP<\/td>\nBrookhaven<\/td>\n10,998<\/td>\n11733<\/td>\n<\/tr>\n
Amityville<\/td>\nVillage<\/td>\nBabylon<\/td>\n9,500<\/td>\n11701<\/td>\n<\/tr>\n
Northport<\/td>\nVillage<\/td>\nHuntington<\/td>\n7,347<\/td>\n11768<\/td>\n<\/tr>\n
Southampton<\/td>\nVillage<\/td>\nSouthampton<\/td>\n4,550<\/td>\n11968<\/td>\n<\/tr>\n
Setauket<\/td>\nCDP<\/td>\nBrookhaven<\/td>\n3,986<\/td>\n11733<\/td>\n<\/tr>\n
Lloyd Harbor<\/td>\nVillage<\/td>\nHuntington<\/td>\n3,571<\/td>\n11743<\/td>\n<\/tr>\n
Islandia<\/td>\nVillage<\/td>\nIslip<\/td>\n3,567<\/td>\n11749<\/td>\n<\/tr>\n
Brightwaters<\/td>\nVillage<\/td>\nIslip<\/td>\n3,181<\/td>\n11718<\/td>\n<\/tr>\n
Sag Harbor<\/td>\nVillage<\/td>\nSouthampton \/ East Hampton<\/td>\n2,772<\/td>\n11963<\/td>\n<\/tr>\n
Greenport<\/td>\nVillage<\/td>\nSouthold<\/td>\n2,583<\/td>\n11944<\/td>\n<\/tr>\n
Bellport<\/td>\nVillage<\/td>\nBrookhaven<\/td>\n2,203<\/td>\n11713<\/td>\n<\/tr>\n
Nissequogue<\/td>\nVillage<\/td>\nSmithtown<\/td>\n1,564<\/td>\n11780<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

A few names get mixed up. Setauket and East Setauket were counted as one CDP before 2020 and are now split — both still share the 11733 ZIP. Sag Harbor’s village line runs through both Southampton and East Hampton, so its address town depends on the block. Lake Ronkonkoma’s hamlet straddles the Islip–Brookhaven town line; residents on either side share the same ZIP and school-district confusion.<\/p>\n

Towns<\/h2>\n

Suffolk doesn’t use civil townships — its 10 towns are the county subdivision, each running its own local government and holding a mix of villages and hamlets.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Town<\/th>\nPop. (2020)<\/th>\nMain settlements<\/th>\n<\/tr>\n<\/thead>\n
Brookhaven<\/td>\n485,773<\/td>\nCoram, Patchogue, Shirley, Selden, Mastic, Bellport<\/td>\n<\/tr>\n
Islip<\/td>\n339,170<\/td>\nBrentwood, Central Islip, Bay Shore, Islandia, Brightwaters<\/td>\n<\/tr>\n
Babylon<\/td>\n218,566<\/td>\nLindenhurst, Deer Park, Wyandanch, Babylon, Amityville<\/td>\n<\/tr>\n
Huntington<\/td>\n204,706<\/td>\nHuntington Station, Northport, Lloyd Harbor<\/td>\n<\/tr>\n
Smithtown<\/td>\n116,296<\/td>\nCommack, Kings Park, Nissequogue, Smithtown<\/td>\n<\/tr>\n
Southampton<\/td>\n69,036<\/td>\nSouthampton, Sag Harbor, Hampton Bays, Westhampton Beach<\/td>\n<\/tr>\n
Riverhead<\/td>\n35,902<\/td>\nRiverhead (seat), Aquebogue, Jamesport<\/td>\n<\/tr>\n
East Hampton<\/td>\n28,385<\/td>\nEast Hampton, Montauk, Amagansett<\/td>\n<\/tr>\n
Southold<\/td>\n23,732<\/td>\nGreenport, Mattituck, Cutchogue, Southold<\/td>\n<\/tr>\n
Shelter Island<\/td>\n3,253<\/td>\nShelter Island Heights, Dering Harbor<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

ZIP Codes<\/h2>\n