16 Pa. Stat. § 2161
All county institution districts in counties of the fourth, fifth, sixth, seventh and eighth classes are hereby abolished. The property, real and personal, of each such existing county institution district on the effective date of these amendments is hereby transferred to and vested in the county wherein the institution district is located. All indebtedness of any institution district, whether current or bonded, incurred in the acquisition of any of such property, and in erecting improvements thereon, shall become the debt and obligation of such county and shall be paid by it. All the powers and duties of the institution districts, in connection with administering their affairs, are hereby transferred to the counties in which such institution districts are located.
16 P.S. § 2161