Department Directory
| Department/Office | Phone | Hours | |
| City Clerk | 860-446-4102 | clerk@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Fire | 860-445-2456 (911 for emergency) | fire@cityofgroton-ct.gov | 24/7 |
| Finance | 860-446-4110 | finance@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Human Resources | 860-449-5502 | hr@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Mayor’s Office | 860-446-4103 | mayor@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Parks and Recreation | 860-446-4128 | pr@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Planning | 860-446-4169 | planning@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Police | 860-445-2451 (911 for emergency) | policedept@cityofgroton-ct.gov | 24/7 |
| Public Works | 860-446-4127 | highway@cityofgroton-ct.gov | M-F, 8:00 – 4:30pm |
| Utility | 860-446-4000 | gucustomerservice@grotonutilities.com | M-F, 8:00 – 4:30pm, Sat 8am-noon |
*Municipal Building is closed on Fridays. Support by phone and email only on Fridays.
Building Addresses
| Building | Address | Primary Phone |
| Fire Station Company 1 | 140 Broad Street, Groton, CT | 860-445-2456 |
| Fire Station Company 2 | 416 Benham Road, Groton, CT | 860-446-5374 |
| Municipal Building/City Offices | 295 Meridian Street | 860-446-4103 |
| Police Department | 295 Meridian Street | 860-445-2451 |
| Utility – Customer Service | 295 Meridian Street | 860-446-4000 |
| Utility – Operations Complex | 1240 Poquonnock Road | 860-446-4093 |
| Wastewater Treatment Facility | 311 Thames Street | 860-446-4085 |