| Zip Code | City | Population ↓ |
|---|---|---|
| 20002 | Washington | 72,397 |
| 20011 | Washington | 67,434 |
| 20019 | Washington | 63,380 |
| 20020 | Washington | 53,005 |
| 20009 | Washington | 50,150 |
| 20001 | Washington | 44,616 |
| 20032 | Washington | 40,920 |
| 20003 | Washington | 37,482 |
| 20016 | Washington | 32,730 |
| 20010 | Washington | 31,808 |
| 20008 | Washington | 29,434 |
| 20007 | Washington | 24,602 |
| 20017 | Washington | 21,208 |
| 20018 | Washington | 19,562 |
| 20012 | Washington | 17,519 |
| 20024 | Washington | 15,888 |
| 20015 | Washington | 15,653 |
| 20037 | Washington | 13,156 |
| 20005 | Washington | 13,131 |
| 20036 | Washington | 4,605 |
| 20057 | Washington | 3,229 |
| 20052 | Washington | 2,730 |
| 20004 | Washington | 1,831 |
| 20064 | Washington | 1,442 |
| 20006 | Washington | 1,362 |
| 20059 | Washington | 1,338 |
| 20373 | Naval Anacost Annex | 383 |
| 20390 | Washington | 246 |
| 20319 | Washington | 23 |
| 20422 | Washington | 15 |
| 20317 | Washington | 15 |
| 20431 | Washington | 0 |
| 20591 | Washington | 0 |
| 20510 | Washington | 0 |
| 20515 | Washington | 0 |
| 20520 | Washington | 0 |
| 20530 | Washington | 0 |
| 20535 | Washington | 0 |
| 20540 | Washington | 0 |
| 20542 | Washington | 0 |
| 20551 | Washington | 0 |
| 20560 | Washington | 0 |
| 20565 | Washington | 0 |
| 20566 | Washington | 0 |
| 20427 | Washington | 0 |
| 20418 | Washington | 0 |
| 20415 | Washington | 0 |
| 20408 | Washington | 0 |
| 20388 | Washington Navy Yard | 0 |
| 20260 | Washington | 0 |
| 20250 | Washington | 0 |
| 20245 | Washington | 0 |
| 20240 | Washington | 0 |
| 20230 | Washington | 0 |
| 20220 | Washington | 0 |
| 20204 | Washington | 0 |
| 20045 | Washington | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 57 ZCTAs in District of Columbia, District of Columbia (US Census).