| Business | Phone |
| Green Hills Regional Planning 1104 Main St, Trenton 64683 | (660) 359-5636 |
| Green Hills Regional Planning 909 Main St, Trenton 64683 | (660) 359-5636 |
| Grundy County Svc Ctr 1506 Oklahoma Ave, Trenton 64683 | (660) 359-6863 |
| Us Government 201 W 11th St, Trenton 64683 | (660) 359-3922 |
| Usda Svc Ctr 3415 Oklahoma Ave, Trenton 64683 | (660) 359-2006 |