| Zip Code | City | Population ↓ |
|---|---|---|
| 10701 | Yonkers | 68,032 |
| 10801 | New Rochelle | 41,724 |
| 10573 | Port Chester | 41,139 |
| 10583 | Scarsdale | 41,107 |
| 10550 | Mount Vernon | 40,073 |
| 10705 | Yonkers | 38,861 |
| 10562 | Ossining | 33,538 |
| 10704 | Yonkers | 32,438 |
| 10598 | Yorktown Heights | 29,066 |
| 10710 | Yonkers | 26,099 |
| 10566 | Peekskill | 25,401 |
| 10591 | Tarrytown | 23,912 |
| 10703 | Yonkers | 23,565 |
| 10708 | Bronxville | 22,595 |
| 10552 | Mount Vernon | 22,099 |
| 10543 | Mamaroneck | 21,281 |
| 10805 | New Rochelle | 20,736 |
| 10567 | Cortlandt Manor | 20,069 |
| 10605 | White Plains | 19,800 |
| 10603 | White Plains | 19,239 |
| 10580 | Rye | 18,077 |
| 10538 | Larchmont | 17,605 |
| 10606 | White Plains | 16,429 |
| 10549 | Mount Kisco | 15,800 |
| 10804 | New Rochelle | 15,036 |
| 10530 | Hartsdale | 14,090 |
| 10528 | Harrison | 13,352 |
| 10803 | Pelham | 13,283 |
| 10570 | Pleasantville | 13,168 |
| 10514 | Chappaqua | 12,867 |
| 10520 | Croton On Hudson | 12,662 |
| 10604 | West Harrison | 11,799 |
| 10522 | Dobbs Ferry | 11,508 |
| 10601 | White Plains | 11,193 |
| 10536 | Katonah | 10,797 |
| 10553 | Mount Vernon | 10,526 |
| 10510 | Briarcliff Manor | 10,435 |
| 10707 | Tuckahoe | 10,209 |
| 10709 | Eastchester | 10,085 |
| 10523 | Elmsford | 9,389 |
| 10706 | Hastings On Hudson | 9,068 |
| 10504 | Armonk | 8,047 |
| 10547 | Mohegan Lake | 7,665 |
| 10590 | South Salem | 7,407 |
| 10533 | Irvington | 7,388 |
| 10595 | Valhalla | 7,213 |
| 10589 | Somers | 7,159 |
| 10607 | White Plains | 6,764 |
| 10507 | Bedford Hills | 6,403 |
| 10506 | Bedford | 6,340 |
| 10577 | Purchase | 6,145 |
| 10502 | Ardsley | 5,745 |
| 10594 | Thornwood | 5,565 |
| 10532 | Hawthorne | 5,040 |
| 10560 | North Salem | 4,975 |
| 10576 | Pound Ridge | 4,927 |
| 10548 | Montrose | 4,446 |
| 10588 | Shrub Oak | 3,296 |
| 10511 | Buchanan | 2,281 |
| 10526 | Goldens Bridge | 1,939 |
| 10578 | Purdys | 1,788 |
| 10501 | Amawalk | 1,416 |
| 10505 | Baldwin Place | 1,132 |
| 10546 | Millwood | 1,022 |
| 10518 | Cross River | 830 |
| 10596 | Verplanck | 796 |
| 10597 | Waccabuc | 642 |
| 10527 | Granite Springs | 608 |
| 10517 | Crompond | 417 |
| 10535 | Jefferson Valley | 214 |
| 10545 | Maryknoll | 203 |
| 10519 | Croton Falls | 122 |
| 10540 | Lincolndale | 114 |
| 10503 | Ardsley On Hudson | 94 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 74 ZCTAs in Westchester County, New York (US Census).