Lewisburg is governed by an elected mayor and eight-member Borough Council (two from each of the four wards). Borough Council appoints the Borough Manager who is tasked with the supervision of the various departments (e.g. Public Works, Planning, Code Enforcement). The municipal authorities work closely with several elected committees and commissions, such as the Lewisburg Planning Commission, the Lewisburg Historical Architectural Review Board, and Lewisburg Shade Tree Commission. In addition, the borough collaborates with neighboring East Buffalo Township on several regional authorities, namely the Buffalo Valley Recreation Authority, the Regional Police Commission, and the Lewisburg Area Joint Sewer Authority.