Nassau County, New York Cities (2026)

72 cities

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density
Area (mi²)
Type
Hempstead1800,777790,4240.53%6,757119 Town
Oyster Bay2301,088300,2940.26%2,906104 Town
North Hempstead3240,082236,8340.5%4,48454 Town
Hempstead459,91858,8710.29%16,2344 Village
Freeport543,90144,282-0.14%9,0805 Village
Valley Stream640,09840,500-0.17%11,5293 Village
Long Beach734,76534,801-0.02%15,6742 City
Glen Cove828,01628,231-0.13%4,2087 City
Rockville Centre925,62925,895-0.17%7,8833 Village
Garden City1023,09822,7820.23%4,3355 Village
Mineola1121,53320,8490.53%11,6332 Village
Lynbrook1220,84820,3550.39%10,3572 Village
Massapequa Park1316,85717,052-0.19%7,6902 Village
Westbury1415,90115,8100.09%6,7842 Village
Floral Park1515,88716,124-0.24%11,1801 Village
Woodbury1612,13812,186-0.16%33636 Town
Woodbury1711,52511,5180.01%32436 Village
Great Neck1811,06011,105-0.06%8,3531 Village
New Hyde Park1910,19210,276-0.14%12,0191 Village
East Rockaway2010,05210,087-0.06%9,8741 Village
Farmingdale218,6038,4530.29%7,8641 Village
Malverne228,4258,542-0.23%7,9631 Village
Great Neck Plaza238,0137,4451.2%25,7650 Village
Williston Park247,4727,565-0.2%11,9361 Village
East Hills257,3217,2420.18%3,2122 Village
Cedarhurst267,3107,351-0.1%10,8301 Village
Manorhaven277,0176,9570.14%14,9620 Village
Lawrence286,8156,7910.06%1,8334 Village
Bayville296,7236,771-0.12%4,6211 Village
Kings Point305,7145,6120.3%1,7013 Village
North Hills315,4155,450-0.11%1,9643 Village
Old Westbury325,2784,2933.21%6169 Village
Island Park335,0564,9450.38%11,3620 Village
Sea Cliff345,0055,061-0.18%4,4891 Village
Flower Hill354,8644,7800.29%3,0172 Village
Muttontown363,5503,4830.31%5866 Village
Great Neck Estates373,2092,9321.45%4,1891 Village
Port Washington North383,1333,171-0.19%6,5410 Village
Roslyn393,0832,9001.02%4,7801 Village
Brookville402,9062,959-0.31%7364 Village
Lake Success412,8352,8200.11%1,5322 Village
Munsey Park422,7672,800-0.18%5,3621 Village
Sands Point432,7622,7040.36%6554 Village
Thomaston442,7212,754-0.18%6,7350 Village
East Williston452,6002,639-0.23%4,5691 Village
Oyster Bay Cove462,2582,2540.04%5404 Village
Old Brookville472,1082,0840.19%5294 Village
Laurel Hollow481,9461,9420.05%6583 Village
Stewart Manor491,9101,937-0.21%9,4550 Village
Lattingtown501,8661,892-0.21%4984 Village
Upper Brookville511,7711,7700%4124 Village
South Floral Park521,7551,7370.17%18,0930 Village
Lawrence531,7221,717-0.29%3648 Town
Atlantic Beach541,7171,7050.12%3,9110 Village
Plandome551,4981,4340.74%3,0450 Village
Roslyn Estates561,3361,3090.38%3,0570 Village
Hewlett Harbor571,3181,335-0.23%1,8181 Village
Kensington581,2061,2000.08%4,7480 Village
Roslyn Harbor591,1191,0680.81%9401 Village
Saddle Rock601,0149860.5%4,0080 Village
Plandome Heights611,0091,0120%5,5750 Village
Baxter Estates621,0061,023-0.3%5,5270 Village
Mill Neck631,0021,019-0.3%3833 Village
Russell Gardens64934945-0.21%5,3680 Village
Woodsburgh65878884-0.11%2,5980 Village
Matinecock66852858-0.12%3193 Village
Plandome Manor678307960.73%1,5311 Village
Baldwin68765812-0.91%3026 Town
Hewlett Neck695745500.7%2,9440 Village
Hewlett Bay Park704784690.42%1,4140 Village
Centre Island71393398-0.25%3611 Village
Cove Neck722922950%2271 Village

Nassau County Cities Summary

Largest City

Hempstead is the largest city in Nassau County, with a population of 800,777.

Smallest City

Cove Neck is the smallest city in Nassau County, with a population of 292.

10 Largest Cities

There are 72 cities in Nassau County, New York.

Location of Nassau County