Nassau County, New York
Nassau County is a county in New York. Its county FIPS code is 36059. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 36059
- Representative coordinates
- 40.729612, -73.589414
- County type
- County
- County seat or government
- Mineola
- Resident population, July 2025
- 1,398,939
- Land area
- 736.965 km²
- Water area
- 437.286 km²
- State
- New York
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Nassau County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
11001 · 11003 · 11010 · 11020 · 11021 · 11023 · 11024 · 11030 · 11040 · 11042 · 11050 · 11096 · 11501 · 11507 · 11509 · 11510 · 11514 · 11516 · 11518 · 11520 · 11530 · 11542 · 11545 · 11547 · 11548 · 11549 · 11550 · 11552 · 11553 · 11554 · 11556 · 11557 · 11558 · 11559 · 11560 · 11561 · 11563 · 11565 · 11566 · 11568 · 11569 · 11570 · 11572 · 11575 · 11576 · 11577 · 11579 · 11580 · 11581 · 11590 · 11596 · 11598 · 11709 · 11710 · 11714 · 11732 · 11735 · 11753 · 11756 · 11758 · 11762 · 11765 · 11771 · 11783 · 11791 · 11793 · 11797 · 11801 · 11803 · 11804
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details 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.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Albertson CDP, NY
- Atlantic Beach village, NY
- Baldwin CDP, NY
- Barnum Island CDP, NY
- Baxter Estates village, NY
- Bay Park CDP, NY
- Bayville village, NY
- Bellerose village, NY
- Bellerose Terrace CDP, NY
- Bellmore CDP, NY
- Bethpage CDP, NY
- Brookville village, NY
- Carle Place CDP, NY
- Cedarhurst village, NY
- Centre Island village, NY
- Cove Neck village, NY
- East Atlantic Beach CDP, NY
- East Hills village, NY
- East Massapequa CDP, NY
- East Meadow CDP, NY
- East Norwich CDP, NY
- East Rockaway village, NY
- East Williston village, NY
- Elmont CDP, NY
- Farmingdale village, NY
- Floral Park village, NY
- Flower Hill village, NY
- Franklin Square CDP, NY
- Freeport village, NY
- Garden City village, NY
Areas sharing the mapped boundary
These areas touch this mapped boundary.
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 at your current point, check its ZIP area, or find its physical time zone.
Small boundary contacts to check
These maps have small contacts that do not confidently establish another jurisdiction or clock zone. They remain separate from the main answer. Check a precise address near the line with the responsible authority.