Nassau County ZIP Codes
Nassau County is a county of New York.
- ZIP codes
- 91
- Cities & towns
- 63
- Area codes
- 9
- Land area
- 285 sq mi
Every ZIP code in Nassau County
| ZIP code | City |
|---|---|
| 11001 | Floral Park |
| 11002 | Floral Park |
| 11003 | Elmont |
| 11010 | Franklin Square |
| 11020 | Great Neck |
| 11021 | Great Neck |
| 11022 | Great Neck |
| 11023 | Great Neck |
| 11024 | Great Neck |
| 11026 | Great Neck |
| 11027 | Great Neck |
| 11030 | Manhasset |
| 11040 | New Hyde Park |
| 11042 | New Hyde Park |
| 11050 | Port Washington |
| 11051 | Port Washington |
| 11052 | Port Washington |
| 11053 | Port Washington |
| 11054 | Port Washington |
| 11055 | Port Washington |
| 11096 | Inwood |
| 11501 | Mineola |
| 11507 | Albertson |
| 11509 | Atlantic Beach |
| 11510 | Baldwin |
| 11514 | Carle Place |
| 11516 | Cedarhurst |
| 11518 | East Rockaway |
| 11520 | Freeport |
| 11530 | Garden City |
| 11531 | Garden City |
| 11542 | Glen Cove |
| 11545 | Glen Head |
| 11547 | Glenwood Landing |
| 11548 | Greenvale |
| 11549 | Hempstead |
| 11550 | Hempstead |
| 11551 | Hempstead |
| 11552 | West Hempstead |
| 11553 | Uniondale |
| 11554 | East Meadow |
| 11555 | Uniondale |
| 11556 | Uniondale |
| 11557 | Hewlett |
| 11558 | Island Park |
| 11559 | Lawrence |
| 11560 | Locust Valley |
| 11561 | Long Beach |
| 11563 | Lynbrook |
| 11565 | Malverne |
| 11566 | Merrick |
| 11568 | Old Westbury |
| 11569 | Point Lookout |
| 11570 | Rockville Centre |
| 11571 | Rockville Centre |
| 11572 | Oceanside |
| 11575 | Roosevelt |
| 11576 | Roslyn |
| 11577 | Roslyn Heights |
| 11579 | Sea Cliff |
| 11580 | Valley Stream |
| 11581 | Valley Stream |
| 11582 | Valley Stream |
| 11590 | Westbury |
| 11596 | Williston Park |
| 11598 | Woodmere |
| 11599 | Garden City |
| 11709 | Bayville |
| 11710 | Bellmore |
| 11714 | Bethpage |
| 11732 | East Norwich |
| 11735 | Farmingdale |
| 11737 | Farmingdale |
| 11753 | Jericho |
| 11756 | Levittown |
| 11758 | Massapequa |
| 11762 | Massapequa Park |
| 11765 | Mill Neck |
| 11771 | Oyster Bay |
| 11773 | Syosset |
| 11783 | Seaford |
| 11791 | Syosset |
| 11793 | Wantagh |
| 11797 | Woodbury |
| 11801 | Hicksville |
| 11802 | Hicksville |
| 11803 | Plainview |
| 11804 | Old Bethpage |
| 11815 | Hicksville |
| 11819 | Hicksville |
| 11853 | Jericho |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Nassau County codes above are listed without a column we would have to invent.
Cities and towns in Nassau County
A further 34 places in Nassau County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.
Area codes covering Nassau County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
- 347 Area code 347
- 363 Area code 363
- 465 Area code 465
- 516 Area code 516
- 631 Area code 631
- 718 Area code 718
- 917 Area code 917
- 929 Area code 929
- 934 Area code 934
Where Nassau County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Nassau County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.