| Business | Phone |
| Cooperative Extension Svc 220 W Livingston St # B252, Celina 45822 | (419) 586-2179 |
| Workforce Investment Act 220 W Livingston St # B272, Celina 45822 | (419) 586-6409 |
| Veterans Service Office 220 W Livingston St # B270, Celina 45822 | (419) 586-3542 |
| Mercer Auditor's Office 101 N Main St # 105, Celina 45822 | (419) 586-6402 |
| Mercer Board Of Elections 101 N Main St # 107, Celina 45822 | (419) 586-2215 |
| Mercer Commissioner's Office 220 W Livingston St # A201, Celina 45822 | (419) 586-3178 |
| Mercer County Central Dispatch 125 W Livingston St, Celina 45822 | (419) 586-6455 |
| Mercer County Custodian's Office 101 N Main St, Celina 45822 | (419) 586-2617 |
| Mercer County Dare Officer 220 W Livingston St # A230, Celina 45822 | (419) 586-6074 |
| Mercer County Dare Officer 301 Riley St, Celina 45822 | (419) 586-6074 |
| Mercer County Dog Warden 7009 State Route 49, Celina 45822 | (419) 942-1550 |
| Mercer County Ems Billing 301 Riley St, Celina 45822 | (419) 586-3797 |
| Mercer County Fair Board 1001 W Market St, Celina 45822 | (419) 586-3239 |
| Mercer County Garage 1001 W Market St, Celina 45822 | (419) 586-4292 |
| Mercer County Home 4871 State Route 29, Celina 45822 | (419) 586-5513 |
| Mercer County Maintenance Bldg 128 E Fulton St, Celina 45822 | (419) 586-2205 |
| Mercer County Motor Vehicle 318 Portland St, Celina 45822 | (419) 586-5005 |
| Mercer County Probate Clerk 101 N Main St # 306, Celina 45822 | (419) 586-8779 |
| Mercer County Recorder's Office 101 N Main St # 203, Celina 45822 | (419) 586-4232 |
| Mercer Engineer's Office 321 Riley St, Celina 45822 | (419) 586-7759 |
| Montezuma Club Island Waste 6590 Guadalupe Rd, Celina 45822 | (419) 268-0109 |