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Nassau County, New York

Nassau County, New York · ZIP 11001, 11003, 11010

  • Census data · ACS 2019-2023
Browse the 136 townsFind my townSponsor a town here
  • 1,392,438 (2024 estimate)Population
  • 456,076Households
  • $143,408Median household income
  • $658,700Median home value
  • 136Towns with a page
  • 70ZIP codes

Nassau County in numbersOfficial sources, refreshed yearly

Population, 2000 to 2020+4.6%
1.3M1.4M1.4M1.4M2000: 1,334,54420002010: 1,339,53220102020: 1,395,77420201,334,5441,395,774
Population of Nassau County at each census
CensusPopulation
20001,334,544
20101,339,532
20201,395,774

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, county level, state 36, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 36, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 36, retrieved November 14, 2026.

Household income in Nassau County
Under $50k16.1%
$50k to $100k18.1%
$100k to $150k18%
$150k to $200k14.5%
$200k and over33.4%

Median household income $143,408 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 36, retrieved November 14, 2026.

Housing tenure in Nassau County
Owner occupied
373,665 units
Renter occupied
82,411 units
Vacancy rate
4.6%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, county level, state 36, retrieved November 14, 2026.

Jobs by sector in Nassau County2023
Health care and social assistance136,904
Retail trade69,589
Accommodation and food services53,477
Professional, scientific, and technical services38,890
Administrative and support and waste management and remediation services36,957
Construction32,295
Other services (except public administration)29,791
Finance and insurance26,683

562,420 employees in 48,718 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.

Source: County Business Patterns 2023: employment by sector, county level, state 36, retrieved November 14, 2026.

Nassau County compared with its state
Nassau County compared with its state, American Community Survey 2019-2023
MeasureNassau CountyNew York
Population1,388,13819,872,319
Median household income$143,408$84,578
Median age41.839.6
Median home value$658,700$403,000
Bachelor’s degree or higher48.7%39.6%
Foreign-born residents22.9%22.6%
Owner-occupied homes81.9%54.3%
Mean commute to work36.0 minutes32.8 minutes

Source: American Community Survey 5-year data profile 2019–2023, county level, state 36, retrieved November 14, 2026.

Townships, towns and villages in Nassau County136 with a page · sort by any column

Type
Hempstead TownTown792,341118.5 sq mi
Oyster Bay TownTown299,540103.6 sq mi
North Hempstead TownTown237,69253.5 sq mi
HempsteadVillage59,5693.69 sq mi
LevittownCensus designated place51,5576.81 sq mi
FreeportVillage44,0284.83 sq mi
HicksvilleCensus designated place43,8686.79 sq mi
Valley StreamVillage40,2323.48 sq mi
ElmontCensus designated place36,4363.41 sq mi
East MeadowCensus designated place35,8066.30 sq mi
Long BeachCity34,7772.22 sq mi
UniondaleCensus designated place33,6375.71 sq mi
BaldwinCensus designated place33,5954.11 sq mi
OceansideCensus designated place31,9074.93 sq mi
Franklin SquareCensus designated place30,5592.88 sq mi
Glen CoveCity28,0886.66 sq mi
PlainviewCensus designated place26,2515.72 sq mi
Rockville CentreVillage25,7183.25 sq mi
Garden CityVillage22,9935.33 sq mi
MassapequaCensus designated place21,8223.56 sq mi
MerrickCensus designated place21,8163.72 sq mi
MineolaVillage21,3051.85 sq mi
North BellmoreCensus designated place20,7762.62 sq mi
West HempsteadCensus designated place20,7622.66 sq mi
LynbrookVillage20,6842.01 sq mi
East MassapequaCensus designated place20,1423.38 sq mi
RooseveltCensus designated place19,6361.77 sq mi
SyossetCensus designated place18,2744.98 sq mi
WoodmereCensus designated place18,1982.58 sq mi
North MassapequaCensus designated place18,0372.99 sq mi
WantaghCensus designated place17,9643.83 sq mi
North Valley StreamCensus designated place17,7561.87 sq mi
Port WashingtonCensus designated place17,6134.20 sq mi
BethpageCensus designated place17,3343.58 sq mi
Massapequa ParkVillage16,9222.19 sq mi
Floral ParkVillage15,9661.42 sq mi
SeafordCensus designated place15,8842.61 sq mi
WestburyVillage15,8712.34 sq mi
BellmoreCensus designated place15,6522.36 sq mi
South FarmingdaleCensus designated place14,9532.19 sq mi
New CasselCensus designated place14,4141.49 sq mi
North New Hyde ParkCensus designated place14,3541.99 sq mi
JerichoCensus designated place14,1173.96 sq mi
SalisburyCensus designated place13,3881.75 sq mi
North MerrickCensus designated place12,5441.72 sq mi
InwoodCensus designated place11,9641.59 sq mi
North WantaghCensus designated place11,7161.90 sq mi
Great NeckVillage11,0751.32 sq mi
New Hyde ParkVillage10,2200.85 sq mi
East RockawayVillage10,0641.02 sq mi
WoodburyCensus designated place9,2705.01 sq mi
PlainedgeCensus designated place8,9301.40 sq mi
FarmingdaleVillage8,5531.09 sq mi
MalverneVillage8,4641.06 sq mi
Garden City ParkCensus designated place8,1760.99 sq mi
Great Neck PlazaVillage7,8240.31 sq mi
ManhassetCensus designated place7,7302.39 sq mi
HewlettCensus designated place7,5990.88 sq mi
Williston ParkVillage7,5030.63 sq mi
CedarhurstVillage7,3240.67 sq mi
East HillsVillage7,2952.28 sq mi
ManorhavenVillage6,9970.47 sq mi
Oyster BayCensus designated place6,9001.24 sq mi
Roslyn HeightsCensus designated place6,8811.48 sq mi
LawrenceVillage6,8073.72 sq mi
BayvilleVillage6,7391.46 sq mi
Old BethpageCensus designated place6,1794.16 sq mi
South Valley StreamCensus designated place6,1770.87 sq mi
LakeviewCensus designated place5,7941.00 sq mi
Kings PointVillage5,6803.36 sq mi
North HillsVillage5,4272.76 sq mi
Carle PlaceCensus designated place5,0940.96 sq mi
Sea CliffVillage5,0241.11 sq mi
Island ParkVillage5,0190.44 sq mi
Old WestburyVillage4,9508.57 sq mi
AlbertsonCensus designated place4,8590.68 sq mi
Flower HillVillage4,8361.61 sq mi
SearingtownCensus designated place4,7860.93 sq mi
Glen HeadCensus designated place4,5751.64 sq mi
Garden City SouthCensus designated place4,0770.40 sq mi
HerricksCensus designated place4,0770.57 sq mi
University GardensCensus designated place3,9860.53 sq mi
Manhasset HillsCensus designated place3,7890.59 sq mi
Glenwood LandingCensus designated place3,7760.97 sq mi
Locust ValleyCensus designated place3,5910.91 sq mi
MuttontownVillage3,5286.06 sq mi
South HempsteadCensus designated place3,3500.58 sq mi
Port Washington NorthVillage3,1460.48 sq mi
Great Neck EstatesVillage3,1170.77 sq mi
RoslynVillage3,0220.65 sq mi
BrookvilleVillage2,9243.95 sq mi
Lake SuccessVillage2,8301.85 sq mi
Munsey ParkVillage2,7780.52 sq mi
Sands PointVillage2,7434.22 sq mi
ThomastonVillage2,7320.40 sq mi
East NorwichCensus designated place2,7031.05 sq mi
Lido BeachCensus designated place2,6341.69 sq mi
East WillistonVillage2,6130.57 sq mi
Oyster Bay CoveVillage2,2574.18 sq mi
Bellerose TerraceCensus designated place2,1800.12 sq mi
Barnum IslandCensus designated place2,1730.87 sq mi
Old BrookvilleVillage2,1003.98 sq mi
Laurel HollowVillage1,9452.96 sq mi
Stewart ManorVillage1,9190.20 sq mi
East Atlantic BeachCensus designated place1,8920.31 sq mi
LattingtownVillage1,8753.75 sq mi
Bay ParkCensus designated place1,7800.50 sq mi
Upper BrookvilleVillage1,7714.30 sq mi
South Floral ParkVillage1,7490.10 sq mi
Atlantic BeachVillage1,7130.44 sq mi
PlandomeVillage1,4770.49 sq mi
Harbor IsleCensus designated place1,4010.17 sq mi
Roslyn EstatesVillage1,3270.44 sq mi
Hewlett HarborVillage1,3240.72 sq mi
Great Neck GardensCensus designated place1,2450.18 sq mi
KensingtonVillage1,2040.25 sq mi
BelleroseVillage1,1730.13 sq mi
Roslyn HarborVillage1,1021.19 sq mi
GreenvaleCensus designated place1,0950.25 sq mi
Baxter EstatesVillage1,0120.18 sq mi
Plandome HeightsVillage1,0100.18 sq mi
Mill NeckVillage1,0082.62 sq mi
Saddle RockVillage1,0050.25 sq mi
Point LookoutCensus designated place9960.27 sq mi
Russell GardensVillage9380.17 sq mi
WoodsburghVillage8800.34 sq mi
MatinecockVillage8542.67 sq mi
Plandome ManorVillage8190.54 sq mi
North LynbrookCensus designated place6990.09 sq mi
Hewlett NeckVillage5660.20 sq mi
Harbor HillsCensus designated place5200.12 sq mi
Malverne Park OaksCensus designated place5170.13 sq mi
Hewlett Bay ParkVillage4750.34 sq mi
Centre IslandVillage3951.09 sq mi
Saddle Rock EstatesCensus designated place3510.08 sq mi
Cove NeckVillage2931.28 sq mi

Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 36 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.

County officialsFrom public records

No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.

Across Nassau County

Jobs across Nassau County

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Neighboring counties

Neighboring counties

Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 36, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 09, retrieved November 14, 2026.