| Business | Phone |
| Croswell City Clerk 100 N Howard Ave, Croswell 48422 | (810) 679-2299 |
| Croswell City Office 260 Mills St, Croswell 48422 | (810) 679-4824 |
| Croswell City Waste Water Plnt 5580 Lancaster St, Croswell 48422 | (810) 679-2459 |
| Croswell Ems 11 Wells St, Croswell 48422 | (810) 679-4224 |