| Business | Phone |
| Bainbridge Twp Office 7315 Territorial Rd, Coloma 49038 | (269) 468-8040 |
| Coloma Charter Township 6400 N Shore Dr, Coloma 49038 | (269) 468-4834 |
| Coloma City Office 100 Randall Dr, Coloma 49038 | (269) 468-6186 |
| Coloma Township Hall 4919 Paw Paw Lake Rd, Coloma 49038 | (269) 468-7212 |