| Business | Phone |
| Sewer Maintenance Dept 1918 Waterworks Rd, Mt. Vernon 62864 | (618) 242-6850 |
| Shiloh Township Supervisor 9298 E Bellview Rd, Mt. Vernon 62864 | (618) 244-4320 |
| Shiloh Twp Hwy Commissioner 9298 E Bellview Rd, Mt. Vernon 62864 | (618) 244-5615 |
| Mt Vernon City Mayor 1100 Main St, Mt. Vernon 62864 | (618) 242-6802 |
| Rolland W Lewis Community Bldg 800 S 27th St, Mt. Vernon 62864 | (618) 242-6890 |
| Dodd's Twp Road Commissioner 14821 E Bakerville Rd, Mt. Vernon 62864 | (618) 244-1973 |
| Dodds Twp Supervisor 14821 E Bakerville Rd, Mt. Vernon 62864 | (618) 244-1378 |
| Mt Vernon Billing Svc Dept 1100 Main St, Mt. Vernon 62864 | (618) 242-6819 |
| Mt Vernon Engineering 1100 Main St, Mt. Vernon 62864 | (618) 242-6830 |
| Mt Vernon Dev Corp 809 Main St, Mt. Vernon 62864 | (618) 242-6866 |
| Mt Vernon Equipment Mntnc 401 N 20th St, Mt. Vernon 62864 | (618) 242-6859 |
| Mt Vernon General Assistance 811 Harrison St, Mt. Vernon 62864 | (618) 242-1613 |
| Mt Vernon Township Clerk 811 Harrison St, Mt. Vernon 62864 | (618) 242-5990 |
| Mt Vernon Township Supervisor 811 Harrison St, Mt. Vernon 62864 | (618) 244-3463 |