The embodiments provide a hinge assembly for a trash can assembly that allows the lid to be conveniently removed from the hinge assembly. The trash can assembly, can comprises: a shell having an upper, open end; a lid configured to cover the upper, open end of the shell; a hinge assembly coupled to the shell and the lid and configured to provide pivotable movement of the lid between an open position and a closed position, wherein the hinge assembly comprises, a mounting bracket provided on the lid and having at least one through hole, a housing provided at the upper end of the shell and defining a bore, and a pivot bar that is received inside the at least one through hole and the bore to allow pivotable movement of the mounting bracket relative to the housing, and engaged by a locking mechanism into position within mounting bracket and housing to prevent withdrawal of the pivot bar from inside the at least one through hole and the bore.