美国邮政编码列表
| 州 | 城市 | 邮政编码 |
|---|---|---|
| MD | Chevy Chase | 20825 |
| MD | Bethesda | 20827 |
| MD | Olney | 20830 |
| MD | Olney | 20832 |
| MD | Brookeville | 20833 |
| MD | Poolesville | 20837 |
| MD | Barnesville | 20838 |
| MD | Beallsville | 20839 |
| MD | Boyds | 20841 |
| MD | Dickerson | 20842 |
| MD | Rockville | 20847 |
| MD | Rockville | 20848 |
| MD | Rockville | 20849 |
| MD | Rockville | 20850 |
| MD | Rockville | 20851 |
| MD | Rockville | 20852 |
| MD | Rockville | 20853 |
| MD | Potomac | 20854 |
| MD | Derwood | 20855 |
| MD | Rockville | 20857 |