Map of Nassau County Map, New York

Written and Fact-checked by | Updated On: September 17, 2025, 14:10 ET

Map of Nassau County - Nassau County is a county located in the U.S. state of New York. Nassau County Map showing cities, highways, important places and water bodies. Get Where is Nassau County located in the map, major cities in Nassau county, population, areas, and places of interest.

Map of Nassau County, New York

Map of Nassau County, New York

About Nassau County Map, New York: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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About Nassau County, New York

Nassau County is a county located in the U.S. state of New York. It's county seat is Mineola. As per 2020 census, the population of Nassau County is 1390907 people and population density is 3070.43 square miles. According to the United States Census Bureau, the county has a total area of 453 sq mi (1,173 km2). Nassau County was established on 1899.

Facts about Nassau County, New York

CountryUnited States
StateNew York
RegionLong Island / New York Metropolitan Area
County SeatMineola
Founded1899 (effective Jan 1)
Named ForHouse of Nassau
Coordinates~40.72° N, 73.63° W
Total Area~453 sq mi
Land Area~285 sq mi
Water Area~169 sq mi
Water %~37%
Population (2020)~1,395,774
Estimated Population (2024)~1,392,438
Population Density~4,800 /sq mi (land area)
Largest MunicipalityHempstead (town)
Other Major CommunitiesOyster Bay, North Hempstead, Glen Cove, Long Beach
Main IndustriesServices, Healthcare, Education, Retail, Technology
Major HighwaysI‑495, Northern State Pkwy, Southern State Pkwy, NY‑25, NY‑135
Time ZoneEastern Time (UTC−05:00)
Known ForAffluent suburbs, Long Island Sound & Atlantic Ocean coastline, parks & beaches, close NYC commuter links
Websitehttps://www.nassaucountyny.gov/

Top Attractions in Nassau County, New York

  • Jones Beach State Park – Ocean beach and boardwalk.
  • Old Westbury Gardens – Historic mansion and gardens.
  • Nassau County Museum of Art – Art museum and grounds.
  • Planting Fields Arboretum – Arboretum and historic estate.
  • Cradle of Aviation Museum – Aviation and space history.
  • Long Beach Boardwalk – Beachfront walking path.
  • Belmont Park – Famous horse racing track.
  • Sands Point Preserve – Waterfront estates and trails.
  • Port Washington Waterfront – Harbor views and dining.
  • Oyster Bay Historic Area – Theodore Roosevelt history.
  • Garvies Point Museum – Geology and Native American history.
  • Eisenhower Park – Large park and recreation.

Cities & Towns in Nassau County, New York

Hempstead, Garden City, Glen Cove, Long Beach, Freeport, Rockville Centre, Valley Stream, Oceanside, Baldwin, Levittown, Floral Park, Lynbrook, Westbury, Mineola, Wantagh, Massapequa, Merrick, Carle Place, Elmont, Bellmore