Complete ZIP Code Details
| ZIP Code | 6820 |
| City | Darien |
| State | Connecticut (CT) |
| County | Western Connecticut |
| Timezone | America/New_York |
| Coordinates | 41.0798300, -73.4824200 |
| Population | 21,936 |
| ZIP Type | STANDARD |
| Country | United States |
| ZIP Code | 6820 |
| City | Darien |
| State | Connecticut (CT) |
| County | Western Connecticut |
| Timezone | America/New_York |
| Coordinates | 41.0798300, -73.4824200 |
| Population | 21,936 |
| ZIP Type | STANDARD |
| Country | United States |