| Business | Phone |
| Circuit Clerk 100 Se 3rd St, Aledo 61231 | (309) 582-7122 |
| Highway Garage 1630 Highway 17, Aledo 61231 | (309) 582-2823 |
| Mercer County Assessment Ofc 100 Se 3rd St 1, Aledo 61231 | (309) 582-7814 |
| Mercer County Building Mntnc 100 Se 3rd St, Aledo 61231 | (309) 582-3004 |
| Mercer County Coroner 607 Sw 9th St, Aledo 61231 | (309) 582-7756 |
| Mercer County Courthouse 100 Se 3rd St 3s, Aledo 61231 | (309) 582-7711 |
| Mercer County Dog Pound 1638 Highway 17, Aledo 61231 | (309) 582-5215 |
| Mercer County Zoning 100 Se 3rd St, Aledo 61231 | (309) 582-2138 |
| Mercer County Historical Scty 1406 Se 2nd Ave, Aledo 61231 | (309) 582-2280 |
| Mercer County Historical Soc 109 Sw 10th St, Aledo 61231 | (309) 582-2280 |
| Mercer County Supt Of Hwys 1630 Highway 17, Aledo 61231 | (309) 582-2715 |
| Mercer Cty Dept Human Resource 400 Se 8th Ave, Aledo 61231 | (309) 582-5178 |
| Mercer Cty Dept Human Resource 601 Se 19th Ave, Aledo 61231 | (309) 582-5178 |