| Business | Phone |
| St Clair 911 Coordinator 101 S 1st St, Belleville 62220 | (618) 277-7316 |
| St Clair County Animal Svc 1250 S 11th St, Belleville 62226 | (618) 235-0585 |
| St Clair County Arbitration 19 Public Sq, Belleville 62220 | (618) 236-8605 |
| St Clair County Casa 101 W Main St, Belleville 62220 | (618) 234-4278 |
| St Clair County Circuit Clerk 10 Public Sq, Belleville 62220 | (618) 277-6832 |
| St Clair County Coroner 10 Public Sq, Belleville 62220 | (618) 277-8682 |
| St Clair Veterans Assistance 19 Public Sq 403, Belleville 62220 | (618) 277-0040 |
| Intergovernmental Grants Dept 19 Public Sq 200, Belleville 62220 | (618) 277-6790 |
| Juvenile Detention Home 9006 Lebanon Rd, Belleville 62223 | (618) 397-0766 |