Post Offices List in Darien City, Connecticut:
| Darien Post Office | 30 Corbin Dr, Darien, CT 06820 |
| Noroton Heights Post Office | 264 Heights Rd, Darien, CT 06820 |
| Darien Post Office | 30 Corbin Dr, Darien, CT 06820 |
| Noroton Heights Post Office | 264 Heights Rd, Darien, CT 06820 |