| Business | Phone |
| Eaton Rapids Bldg Inspector 144 N Main St, Eaton Rapids 48827 | (517) 663-1962 |
| Eaton Rapids City Office 220 S Main St, Eaton Rapids 48827 | (517) 663-5697 |
| Eaton Rapids Garage 200 S Main St, Eaton Rapids 48827 | (517) 663-1935 |
| Eaton Rapids Garage 300 Market St, Eaton Rapids 48827 | (517) 663-1935 |
| Eaton Rapids Senior Citizens 201 Grand St, Eaton Rapids 48827 | (517) 663-2335 |
| Eaton Rapids Twp Office 2512 S Canal Rd, Eaton Rapids 48827 | (517) 663-7407 |
| Hamlin Township Hall & Offices 6463 S Clinton Trl, Eaton Rapids 48827 | (517) 663-7777 |