| Business | Phone |
| Esda 610 Main St, Mendota 61342 | (815) 538-5966 |
| Mendota City Sewer Plant 800 Washington St, Mendota 61342 | (815) 539-6879 |
| Mendota City Sewer Plant S 7th Ave, Mendota 61342 | (815) 539-6879 |
| Mendota Cty Building Inspector 1104 2nd St, Mendota 61342 | (815) 539-9111 |
| Mendota Cty Building Inspector 703 3rd Ave, Mendota 61342 | (815) 539-9111 |
| Mendota Township Bus Garage 118 14th St, Mendota 61342 | (815) 538-6211 |
| Mendota Twp Road Dist 4499 E 250th Rd, Mendota 61342 | (815) 538-3415 |
| Mendota Twp Supervisor 1005 Main St, Mendota 61342 | (815) 539-6820 |
| Mendota Twp Supervisor 607 8th Ave, Mendota 61342 | (815) 539-6820 |