| Business | Phone |
| Farmington City Bldg Inspctr 12 S Franklin St, Farmington 63640 | (573) 756-0608 |
| Farmington City Collector 110 W Columbia St, Farmington 63640 | (573) 756-4501 |
| Farmington Inventory Control 210 Industrial Dr, Farmington 63640 | (573) 747-0741 |
| Farmington Light Dept 110 W Columbia St, Farmington 63640 | (573) 756-2620 |
| Farmington Sewage Plant Highway 32 E, Farmington 63640 | (573) 756-5525 |
| Farmington Sewage Plant Highway 67 S, Farmington 63640 | (573) 756-1696 |