Nassau County, New York
Nassau County, New York, has 1,398,939 residents (July 2025 estimate). Its county seat is Mineola. It uses Eastern Time and covers 285 sq mi (737 km²) of land.
- Resident population, July 2025
- 1,398,939
- Land area
- 285 sq mi (737 km²)
- County seat or government
- Mineola
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $146,202 ± $1,472
- Median home value
- $684,700 ± $2,833
- Median rent, with utilities
- $2,252 ± $41
- Homes lived in by their owners
- 81.9% ± 0.5 points
- County type
- County
- Metro or micro area
- New York-Newark-Jersey City, NY-NJ metro areaCentral county
- Water area
- 169 sq mi (437 km²)
- State
- New York
- County code (FIPS)
- 36059
- Coordinates (central point)
- 40.729612, -73.589414
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Nassau County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 1155060,960 people
- 1175854,375 people
- 1159047,599 people
- 1100345,174 people
- 1152044,910 people
- 1158043,092 people
- 1175642,665 people
- 1104041,988 people
- 1180141,585 people
- 1156138,708 people
- 1155436,821 people
- 1151035,701 people
All 70
- 1171034,834 people
- 1156634,741 people
- 1105032,794 people
- 1179332,349 people
- 1173532,028 people
- 1157230,436 people
- 1180329,713 people
- 1154228,965 people
- 1157028,908 people
- 1153027,939 people
- 1155327,875 people
- 1101025,604 people
- 1179125,520 people
- 1100125,493 people
- 1155225,174 people
- 1156322,899 people
- 1158122,818 people
- 1171422,695 people
- 1176222,487 people
- 1150121,641 people
- 1178321,127 people
- 1102119,783 people
- 1157518,705 people
- 1103018,051 people
- 1159813,599 people
- 1157713,077 people
- 1175312,435 people
- 1157612,281 people
- 1154512,172 people
- 1177110,908 people
- 1159610,516 people
- 1109610,428 people
- 1151810,149 people
- 110239,630 people
- 117979,402 people
- 110249,155 people
- 115169,112 people
- 115659,009 people
- 115598,878 people
- 115578,504 people
- 115588,454 people
- 115607,696 people
- 117096,744 people
- 115076,736 people
- 110205,676 people
- 115795,033 people
- 118044,835 people
- 115144,544 people
- 115684,144 people
- 117323,228 people
- 115492,359 people
- 115482,261 people
- 115091,790 people
- 11569945 people
- 11547706 people
- 11765683 people
- 11042141 people
- 115560 people
70 ZIP Code areas overlap Nassau County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
Nassau County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Towns in Nassau County, largest first
- Town of Hempstead790,202 people
- Town of Oyster Bay299,509 people
- Town of North Hempstead237,012 people
People counts are American Community Survey 2020–2024 5-year estimates. All towns in New York, by county
School districts in Nassau County, largest first
- Sewanhaka Central High School District123,365 people
- Bellmore-Merrick Central High School District70,537 people
- Valley Stream Central High School District64,691 people
- Elmont Union Free School District53,895 people
- East Meadow Union Free School District51,306 people
- Great Neck Union Free School District47,994 people
- Massapequa Union Free School District47,425 people
- Hempstead Union Free School District46,807 people
- Uniondale Union Free School District46,421 people
- Levittown Union Free School District46,158 people
- Hicksville Union Free School District41,214 people
- Freeport Union Free School District40,154 people
All 58
- Farmingdale Union Free School District39,774 people
- Long Beach City School District39,653 people
- Lawrence Union Free School District39,161 people
- Baldwin Union Free School District36,257 people
- Oceanside Union Free School District35,720 people
- Syosset Central School District35,701 people
- Port Washington Union Free School District33,435 people
- Plainview-Old Bethpage Central School District29,647 people
- Valley Stream Union Free School District 1329,369 people
- Amityville Union Free School District28,342 people
- Glen Cove City School District28,112 people
- Westbury Union Free School District27,146 people
- Mineola Union Free School District27,097 people
- Franklin Square Union Free School District26,945 people
- North Bellmore Union Free School District26,918 people
- Rockville Centre Union Free School District24,193 people
- Herricks Union Free School District23,489 people
- Garden City Union Free School District22,941 people
- New Hyde Park-Garden City Park Union Free School District22,728 people
- Roosevelt Union Free School District20,814 people
- Hewlett-Woodmere Union Free School District19,966 people
- Bethpage Union Free School District19,846 people
- Floral Park-Bellerose Union Free School District19,797 people
- Plainedge Union Free School District19,076 people
- Valley Stream Union Free School District 3018,940 people
- West Hempstead Union Free School District18,694 people
- Lynbrook Union Free School District18,177 people
- Wantagh Union Free School District17,763 people
- Roslyn Union Free School District17,663 people
- Merrick Union Free School District17,453 people
- Locust Valley Central School District17,112 people
- Manhasset Union Free School District16,705 people
- North Shore Central School District16,445 people
- Valley Stream Union Free School District 2416,382 people
- Seaford Union Free School District16,126 people
- Malverne Union Free School District15,945 people
- Jericho Union Free School District15,751 people
- Island Trees Union Free School District15,613 people
- North Merrick Union Free School District14,183 people
- Oyster Bay-East Norwich Central School District13,656 people
- Bellmore Union Free School District11,983 people
- Carle Place Union Free School District9,795 people
- East Williston Union Free School District9,479 people
- East Rockaway Union Free School District9,284 people
- Island Park Union Free School District8,454 people
- Cold Spring Harbor Central School District8,386 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Hempstead, New York (village)58,801 people
- Levittown, New York (CDP)51,904 people
- Freeport, New York (village)44,088 people
- Hicksville, New York (CDP)43,780 people
- Valley Stream, New York (village)40,315 people
- East Meadow, New York (CDP)36,821 people
- Elmont, New York (CDP)36,518 people
- Baldwin, New York (CDP)34,994 people
- Long Beach, New York (city)34,756 people
- Uniondale, New York (CDP)33,148 people
- Oceanside, New York (CDP)31,639 people
- Franklin Square, New York (CDP)30,897 people
All 133
- Glen Cove, New York (city)28,112 people
- Plainview, New York (CDP)25,982 people
- Rockville Centre, New York (village)25,765 people
- Garden City, New York (village)22,941 people
- Merrick, New York (CDP)21,744 people
- Massapequa, New York (CDP)21,389 people
- Mineola, New York (village)21,211 people
- North Bellmore, New York (CDP)20,689 people
- West Hempstead, New York (CDP)20,648 people
- East Massapequa, New York (CDP)20,377 people
- Lynbrook, New York (village)20,325 people
- Roosevelt, New York (CDP)18,885 people
- Syosset, New York (CDP)18,433 people
- Wantagh, New York (CDP)18,365 people
- Woodmere, New York (CDP)18,061 people
- Port Washington, New York (CDP)18,004 people
- North Massapequa, New York (CDP)17,877 people
- North Valley Stream, New York (CDP)17,825 people
See all 133 cities, towns and communities in Nassau County, largest first
Bordering areas, nearest first
Distances are straight lines between map points.
- Queens County, New York14 mi west
- Bronx County, New York16 mi northwest
- Westchester County, New York30 mi north
- Western Connecticut Planning Region, Connecticut39 mi north
- Suffolk County, New York49 mi east
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.