Post Offices List in Waltham City, Massachusetts:
| Waltham Carrier Annex Post Office | 200 Smith St Ste 101, Waltham, MA 02451 |
| North Waltham Post Office | 854 Lexington St, Waltham, MA 02452 |
| South Waltham Post Office | 38 Spruce St, Waltham, MA 02453 |
| Waltham Post Office | 776 Main St, Waltham, MA 02451 |
| Watertown Annex Post Office | 170 High St, Waltham, MA 02453 |