Nassau County, New York Cities (2026)

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density (/mi²)
Area (mi²)
Type
Hempstead1796,269790,7660.07%6,719119 Town
Oyster Bay2301,359300,3060.08%2,909104 Town
North Hempstead3239,359236,8430.16%4,47054 Town
Hempstead460,04858,8870.38%16,2694 Village
Freeport544,14844,286-0.06%9,1315 Village
Valley Stream640,34840,480-0.08%11,6013 Village
Long Beach734,94334,8040.07%15,7542 City
Glen Cove828,18228,233-0.03%4,2337 City
Rockville Centre925,74925,868-0.08%7,9203 Village
Garden City1023,01223,200-0.13%4,3195 Village
Mineola1121,50920,8520.62%11,6202 Village
Lynbrook1220,95220,4400.47%10,4082 Village
Massapequa Park1316,98117,053-0.09%7,7472 Village
Floral Park1416,07916,121-0.16%11,3151 Village
Westbury1516,01215,8080.19%6,8312 Village
Woodbury1612,15312,191-0.54%33736 Town
Woodbury1711,59611,5280.22%32636 Village
Great Neck1811,14411,1210.03%8,4171 Village
New Hyde Park1910,22210,251-0.04%12,0541 Village
East Rockaway2010,09910,0940.03%9,9201 Village
Farmingdale218,6168,4510.37%7,8761 Village
Malverne228,4638,534-0.15%7,9991 Village
Great Neck Plaza237,9907,3741.28%25,6910 Village
Williston Park247,5157,566-0.12%12,0051 Village
East Hills257,3477,2400.26%3,2242 Village
Cedarhurst267,3347,3440%10,8651 Village
Manorhaven277,1526,9570.24%15,2490 Village
Lawrence286,8576,7930.15%1,8444 Village
Bayville296,7796,768-0.01%4,6591 Village
Kings Point305,7335,6030.4%1,7073 Village
North Hills315,4825,4470.02%1,9883 Village
Old Westbury325,2594,2973.71%6149 Village
Island Park335,0924,9520.45%11,4430 Village
Sea Cliff345,0255,054-0.12%4,5071 Village
Flower Hill354,8794,7780.39%3,0272 Village
Muttontown363,5833,4940.42%5926 Village
Great Neck Estates373,1882,9371.56%4,1621 Village
Port Washington North383,1513,166-0.1%6,5780 Village
Roslyn393,0572,8981.06%4,7401 Village
Brookville403,0542,9630.56%7744 Village
Lake Success412,8542,8210.18%1,5432 Village
Munsey Park422,7842,799-0.11%5,3951 Village
Sands Point432,7762,7090.43%6584 Village
Thomaston442,7732,784-0.11%6,8640 Village
East Williston452,6122,633-0.15%4,5911 Village
Oyster Bay Cove462,2912,2720.13%5484 Village
Old Brookville472,1032,0660.24%5284 Village
Laurel Hollow481,9521,9340.15%6603 Village
Stewart Manor491,9211,939-0.21%9,5100 Village
Lattingtown501,8781,892-0.16%5014 Village
South Floral Park511,7791,7320.34%18,3400 Village
Upper Brookville521,7791,7690.06%4144 Village
Lawrence531,7481,7270.11%3748 Town
Atlantic Beach541,7261,7070.17%3,9320 Village
Plandome551,4931,4330.74%3,0350 Village
Roslyn Estates561,3391,3080.45%3,0640 Village
Hewlett Harbor571,3311,336-0.08%1,8361 Village
Kensington581,2791,2660.08%5,0350 Village
Roslyn Harbor591,1231,0730.9%9431 Village
Plandome Heights601,0191,0160%5,6300 Village
Saddle Rock611,0149840.6%4,0080 Village
Baxter Estates621,0121,020-0.2%5,5600 Village
Mill Neck631,0081,018-0.2%3853 Village
Russell Gardens64898905-0.22%5,1610 Village
Woodsburgh658858850%2,6180 Village
Matinecock66853856-0.12%3203 Village
Plandome Manor678297960.73%1,5301 Village
Baldwin68766812-1.16%3026 Town
Hewlett Neck695785480.7%2,9640 Village
Hewlett Bay Park704814680.21%1,4230 Village
Centre Island71393397-0.25%3611 Village
Cove Neck72292294-0.34%2271 Village

Nassau County Cities Summary

Largest City

Hempstead is the largest city in Nassau County, with a population of 796,269.

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