| ZIP Code | 20004 |
| ZIP Code Name | Washington |
| State | District of Columbia |
| County | District of Columbia |
| Timezone | Eastern Daylight Time (EDT) |
| Adjacent ZIP Codes | 20001 20002 20003 20005 20006 20024 20037 20045 20049 20221 20222 20224 20227 20228 20229 20230 20240 20250 20319 20408 20418 20460 20463 20510 20515 20530 20535 20540 20543 20551 20560 20565 20580 20591 20597 |