The Mid-Columbia Library District is governed by a 7 member Board of Trustees appointed jointly by the Benton and Franklin County Commissioners. Board members' terms are for seven years.
Board members serve without salary, but are reimbursed for necessary travel expenses.
The Board is the policy-making body for the library district. They have the power to determine the rules and regulations governing library service and personnel, as mandated by the library laws of the State of Washington. The officers are a Board Chair and Vice-Chair. The Library Director acts as the Secretary to the Board. Meetings Regular Board meetings are held the third Monday of each month at 7 pm, in the meeting room at the Keewaydin Park Branch.