Boone County Government
Boone County government works out of downtown Columbia. County offices are generally open Monday through Friday, 8 a.m. to 5 p.m.
Where and when
- Boone County Government Center
801 E. Walnut, Columbia, MO 65201
Monday to Friday, 8 a.m. to 5 p.m. Commission (Room 333), clerk, assessor, collector, recorder, treasurer, auditor, resource management. - Boone County Courthouse
705 E. Walnut, Columbia, MO 65201
Monday to Friday, 8 a.m. to 5 p.m. Circuit clerk, prosecuting attorney, public administrator.
Who to call
-
County Commission
(573) 886-4305 -
County Clerk (elections, voter registration)
(573) 886-4375 -
Assessor
(573) 886-4270 -
Collector (property taxes)
(573) 886-4285 -
Recorder of Deeds
(573) 886-4345 -
Treasurer
(573) 886-4365 -
Auditor
(573) 886-4275 -
Resource Management (planning, zoning, building permits)
(573) 886-4330 -
Road & Bridge
(573) 449-8515
5551 S. Tom Bass Road, Columbia -
Health Department
(573) 874-7355
1005 W. Worley, Columbia. Monday to Friday, 8 a.m. to 5 p.m. -
Sheriff: non-emergency, any time
311
Dial 311 inside Boone County for routine law-enforcement calls. In an emergency, call 911. -
Sheriff's Office administration
(573) 875-1111
2121 County Dr., Columbia. Monday to Friday, 8 a.m. to 5 p.m. -
Non-emergency dispatch
(573) 442-6131
From the county's Joint Communications list of non-emergency numbers. -
Emergency Management
(573) 554-7900 -
Prosecuting Attorney
(573) 886-4100 -
Circuit Clerk
(573) 886-4000
In an emergency, call 911.
Official links
- Boone County official site
- Hours and locations
- Contact county officials
- Commission agendas, minutes and orders
- Open bids
- Road closures
Recent public notices
- Columbia reviews residents’ feedback on data centers
Zoning · KOMU 8 (NBC) - Boone County Commission to Consider Budget Amendment for Out-of-County Detainee Housing
Budget · Boone County Government
Phone numbers, addresses and hours come from the county's own websites (checked October 29, 2026). Offices can change them; call ahead.