69 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 11550 | Hempstead | 60,658 |
| 11758 | Massapequa | 54,741 |
| 11590 | Westbury | 48,243 |
| 11520 | Freeport | 44,873 |
| 11003 | Elmont | 44,716 |
| 11580 | Valley Stream | 42,644 |
| 11756 | Levittown | 42,553 |
| 11040 | New Hyde Park | 42,344 |
| 11801 | Hicksville | 41,792 |
| 11561 | Long Beach | 38,847 |
| 11554 | East Meadow | 35,806 |
| 11566 | Merrick | 35,172 |
| 11510 | Baldwin | 34,814 |
| 11710 | Bellmore | 34,459 |
| 11050 | Port Washington | 32,657 |
| 11793 | Wantagh | 31,497 |
| 11572 | Oceanside | 30,627 |
| 11803 | Plainview | 30,219 |
| 11542 | Glen Cove | 29,020 |
| 11553 | Uniondale | 28,344 |
| 11570 | Rockville Centre | 28,162 |
| 11530 | Garden City | 28,041 |
| 11552 | West Hempstead | 26,053 |
| 11001 | Floral Park | 25,714 |
| 11010 | Franklin Square | 25,618 |
| 11791 | Syosset | 25,194 |
| 11581 | Valley Stream | 22,652 |
| 11563 | Lynbrook | 22,558 |
| 11714 | Bethpage | 22,475 |
| 11762 | Massapequa Park | 22,447 |
| 11501 | Mineola | 21,590 |
| 11783 | Seaford | 21,588 |
| 11021 | Great Neck | 19,474 |
| 11575 | Roosevelt | 19,430 |
| 11030 | Manhasset | 17,703 |
| 11598 | Woodmere | 14,316 |
| 11576 | Roslyn | 12,796 |
| 11577 | Roslyn Heights | 12,771 |
| 11753 | Jericho | 12,729 |
| 11545 | Glen Head | 11,963 |
| 11518 | East Rockaway | 10,390 |
| 11596 | Williston Park | 10,378 |
| 11771 | Oyster Bay | 10,173 |
| 11096 | Inwood | 9,897 |
| 11023 | Great Neck | 9,824 |
| 11797 | Woodbury | 9,338 |
| 11559 | Lawrence | 9,130 |
| 11565 | Malverne | 8,908 |
| 11024 | Great Neck | 8,821 |
| 11516 | Cedarhurst | 8,733 |
| 11558 | Island Park | 8,532 |
| 11557 | Hewlett | 8,503 |
| 11560 | Locust Valley | 6,951 |
| 11709 | Bayville | 6,744 |
| 11507 | Albertson | 6,581 |
| 11020 | Great Neck | 5,986 |
| 11579 | Sea Cliff | 5,037 |
| 11804 | Old Bethpage | 4,613 |
| 11514 | Carle Place | 4,421 |
| 11568 | Old Westbury | 4,198 |
| 11732 | East Norwich | 3,546 |
| 11549 | Hempstead | 2,420 |
| 11548 | Greenvale | 2,171 |
| 11509 | Atlantic Beach | 1,747 |
| 11569 | Point Lookout | 996 |
| 11765 | Mill Neck | 808 |
| 11547 | Glenwood Landing | 788 |
| 11042 | New Hyde Park | 232 |
| 11556 | Uniondale | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 69 ZCTAs in Nassau County, New York (US Census).