| Business | Phone |
| Boone Cnty Juvenile Justice 5665 Roger Wilson Meml Dr, Columbia 65202 | (573) 886-4450 |
| Boone County Counselor 601 E Walnut St, Columbia 65201 | (573) 886-4414 |
| Boone County Extension Ctr 1012 N Highway Uu, Columbia 65203 | (573) 445-9792 |
| Boone County Facilities Mntnc 601 E Walnut St # 2, Columbia 65201 | (573) 886-4400 |
| Boone County Group Homes 1209 E Walnut St, Columbia 65201 | (573) 874-1995 |
| Boone County Human Resources 601 E Walnut St # 211, Columbia 65201 | (573) 886-4395 |
| Boone County Mapping 801 E Walnut St # 143, Columbia 65201 | (573) 886-4260 |
| Boone County Personal Property 801 E Walnut St # 143, Columbia 65201 | (573) 886-4250 |
| Boone County Public Admin 701 E Walnut St, Columbia 65201 | (573) 886-4190 |
| Boone County Real Estate 801 E Walnut St # 143, Columbia 65201 | (573) 886-4265 |
| Voter Information 801 E Walnut St, Columbia 65201 | (573) 875-8683 |
| County Collector 801 E Walnut St # 118, Columbia 65201 | (573) 886-4285 |
| County Commission 801 E Walnut St # 245, Columbia 65201 | (573) 886-4305 |
| Data Processing 801 E Walnut St # 221, Columbia 65201 | (573) 886-4315 |
| Recorder Of Deeds 801 E Walnut St # 132, Columbia 65201 | (573) 886-4345 |
| Election Information 801 E Walnut St # 236, Columbia 65201 | (573) 886-4375 |
| Project Hope-Group Homes 1504 Parkade Blvd, Columbia 65203 | (573) 442-1722 |
| Honorable Ellen Roper 701 E Walnut St # 2, Columbia 65201 | (573) 886-4050 |
| Marriage License 801 E Walnut St # 132, Columbia 65201 | (573) 886-4350 |
| Juvenile Officer 115 N 8th St, Columbia 65201 | (573) 886-4200 |