| Natick, Middlesex |
01760 |
| New Town, Middlesex |
02456 |
| Newton, Middlesex |
02458 |
| Newton Center, Middlesex |
02459 |
| Newton Highlands, Middlesex |
02461 |
| Newton Lower Falls, Middlesex |
02462 |
| Newton Upper Falls, Middlesex |
02464 |
| Newtonville, Middlesex |
02460 |
| Nonantum, Middlesex |
02495 |
| North Billerica, Middlesex |
01862 |
| North Cambridge, Middlesex |
02140 |
| North Chelmsford, Middlesex |
01863 |
| North Natick, Middlesex |
01760 |
| North Reading, Middlesex |
01864 |
| North Sudbury, Middlesex |
01776 |
| North Waltham, Middlesex |
02455 |
| Nutting Lake, Middlesex |
01865 |
| Nuttings Lake, Middlesex |
01865 |
| Pepperell, Middlesex |
01463 |
| Pinehurst, Middlesex |
01866 |
| Pingryville, Middlesex |
01460 |
| Porter Square, Middlesex |
02140 |
| Reading, Middlesex |
01867 |
| Riverside, Middlesex |
02458 |
| Saxonville, Middlesex |
01701 |
| Sherborn, Middlesex |
01770 |