| Business | Phone |
| Hillsboro Administration 150 E Main St, Hillsboro 97123 | (503) 681-6113 |
| Hillsboro Building Dept 150 E Main St, Hillsboro 97123 | (503) 681-6144 |
| Hillsboro City Sewer Billing 150 E Main St, Hillsboro 97123 | (503) 681-6163 |
| Hillsboro Cultural Arts Center 527 E Main St, Hillsboro 97123 | (503) 615-3485 |
| Hillsboro Engineering Dept 150 E Main St, Hillsboro 97123 | (503) 681-6146 |
| Hillsboro General Info 150 E Main St, Hillsboro 97123 | (503) 681-6100 |
| Hillsboro Human Resources Dept 123 W Main St, Hillsboro 97123 | (503) 681-6455 |
| Hillsboro Human Resources Dept 150 E Main St, Hillsboro 97123 | (503) 681-6455 |
| Hillsboro Planning Dept 150 E Main St, Hillsboro 97123 | (503) 681-6153 |
| Jackson Bottom Wetlands Prsrv 2600 Sw Hillsboro Hwy, Hillsboro 97123 | (503) 681-6206 |