The Board Of County Commissioners, created by the State Constitution, is composed of three Commissioners elected by the people. Each Oklahoma County is divided into three districts, as equal in population as possible, with one Commissioner elected from each district.

The three-member Board of County Commissioners is the administrative body of the County, with general supervision over all fiscal affairs. The Board meets on the first Monday of every month and every Wednesday thereafter, except on holidays or on special occassions. The Board may set special meetings on 48 hours notice. All sessions are open to the public and held in observance of the Oklahoma Open Meeting Act.

At the first meeting of the Board every January, the Commissioners elect one of their own to serve as Chairman for that calendar year. The Chairman's primary duty is to preside at the meetings of the Board.

•	Designate, construct, maintain, and repair all County highways and bridges
•	Approve all claims covering materials, supplies, or services purchased by all County offices and paid for by County funds
•	Advertise for bids on major County purchases and award all contracts
•	Call all County bond elections
•	Supervise and manage all real estate owned by the County, such as: The Courthouse, the County Office Building, Investors Capital Building, County Jail, Human Services Center, Juvenile Center, Extension Center, Parking Garage, and three highway maintenance offices
•	Through the Department of Social Services, provide pharmacy services and prescription medicines, emergency food vouchers, indigent burials, ambulance service, medical services, temporary housing and convalescent care, job training for indigent, destitute, and unemployable County residents, and help coordinate the Federal Food Stamp program
•	Pass on all zoning applications and regulations of the County Planning Commission (One member of board serves on Planning Commission)
•	Conduct proceedings, set date of elections, canvas returns, and issue Order of Incorporation of all towns and/or cities in the County
•	Audit the accounts of all County offices
•	Publish in a County newspaper a complete report of the official proceedings of all meetings of the Board
•	Appoint one member of the County Excise Board and Board of Equalization
•	Serve or participate in: Metropolitan Library System, City-County Health Department, County Retirement Board of Trustees, County Planning Commission, several County trusts and the Association of Central Oklahoma Governments