69 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 11550 | Hempstead | 60,668 |
| 11758 | Massapequa | 54,201 |
| 11590 | Westbury | 47,951 |
| 11003 | Elmont | 47,515 |
| 11520 | Freeport | 44,876 |
| 11580 | Valley Stream | 43,396 |
| 11756 | Levittown | 42,459 |
| 11040 | New Hyde Park | 42,140 |
| 11801 | Hicksville | 41,967 |
| 11561 | Long Beach | 38,755 |
| 11554 | East Meadow | 36,856 |
| 11510 | Baldwin | 35,070 |
| 11710 | Bellmore | 34,950 |
| 11566 | Merrick | 33,976 |
| 11050 | Port Washington | 31,920 |
| 11793 | Wantagh | 30,865 |
| 11803 | Plainview | 30,298 |
| 11572 | Oceanside | 29,961 |
| 11542 | Glen Cove | 29,095 |
| 11570 | Rockville Centre | 28,262 |
| 11530 | Garden City | 28,207 |
| 11553 | Uniondale | 27,886 |
| 11001 | Floral Park | 26,138 |
| 11552 | West Hempstead | 26,043 |
| 11010 | Franklin Square | 25,751 |
| 11791 | Syosset | 25,631 |
| 11581 | Valley Stream | 22,770 |
| 11714 | Bethpage | 22,444 |
| 11762 | Massapequa Park | 22,440 |
| 11563 | Lynbrook | 22,055 |
| 11783 | Seaford | 21,916 |
| 11501 | Mineola | 21,434 |
| 11021 | Great Neck | 19,623 |
| 11575 | Roosevelt | 19,102 |
| 11030 | Manhasset | 17,168 |
| 11598 | Woodmere | 14,531 |
| 11753 | Jericho | 13,087 |
| 11576 | Roslyn | 12,506 |
| 11577 | Roslyn Heights | 12,399 |
| 11545 | Glen Head | 12,068 |
| 11596 | Williston Park | 10,520 |
| 11518 | East Rockaway | 10,294 |
| 11771 | Oyster Bay | 10,068 |
| 11023 | Great Neck | 9,699 |
| 11096 | Inwood | 9,567 |
| 11797 | Woodbury | 9,203 |
| 11024 | Great Neck | 9,105 |
| 11565 | Malverne | 9,013 |
| 11559 | Lawrence | 8,732 |
| 11558 | Island Park | 8,660 |
| 11516 | Cedarhurst | 8,450 |
| 11557 | Hewlett | 8,290 |
| 11507 | Albertson | 7,111 |
| 11560 | Locust Valley | 7,043 |
| 11709 | Bayville | 6,763 |
| 11020 | Great Neck | 6,145 |
| 11579 | Sea Cliff | 5,062 |
| 11514 | Carle Place | 5,040 |
| 11804 | Old Bethpage | 4,443 |
| 11568 | Old Westbury | 4,272 |
| 11732 | East Norwich | 3,546 |
| 11549 | Hempstead | 2,508 |
| 11548 | Greenvale | 2,230 |
| 11509 | Atlantic Beach | 1,682 |
| 11569 | Point Lookout | 1,110 |
| 11765 | Mill Neck | 708 |
| 11547 | Glenwood Landing | 585 |
| 11042 | New Hyde Park | 317 |
| 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).