| Business | Phone |
| Caseyville Twp Roads 6990 Old Collinsville Rd, O Fallon 62269 | (618) 632-2461 |
| Caseyville Twp Waste Water 1 Ecology Dr, O Fallon 62269 | (618) 632-2414 |
| Cemetery Maintenance 200 N Lincoln Ave, O Fallon 62269 | (618) 624-4517 |
| Shiloh Village Mayor's Office 1 Park Dr, O Fallon 62269 | (618) 632-1022 |
| O'Fallon Township Garage 813 E State St, O Fallon 62269 | (618) 632-2904 |
| O'Fallon Twp Supervisor 801 E State St, O Fallon 62269 | (618) 632-3517 |