| Department | Address | Telephone |
| County Commissioner's and Treasurer's Office | 97 Hammond St. | 942-8535 |
| District Attorney | 97 Hammond St. | 942-8552 |
| Registry of Deeds | 97 Hammond St. | 942-8797 |
| Registry of Probate | 97 Hammond St. | 942-8769 |
| Emergency Management Agency | 97 Hammond St. | 945-4750 |
| Emergency Management Agency: Roads and Mapping | 97 Hammond St. | 945-4750 |
| Sheriff's Department: Emergencies from Bangor, Brewer, Bradford, Corinth, Eddington, Hampden, Hermon, Levant, Old Town, Orono, Orrington | 97 Hammond St. |
942-7911 |
| Sheriff's Department: Emergencies from all other towns | 85 Hammond St. | (800) 432-7911 |
| Sheriff's Department: General calls from Bangor, Brewer, Bradford, Corinth, Eddington, Hampden, Hermon, Levant, Old Town, Orono, Orrington | 85 Hammond St. |
947-4585 |
| Sheriff's Department: General calls from all other towns | 85 Hammond St. | (800) 696-5403 |
| Sheriff's Department: TDD | 947-0620 | |
| Jail | 85 Hammond St. | 947-4585 |
| Regional Dispatch Center | 26 Franklin St. | 945-4636 |