Prior to gaining separate representation, areas now under the jurisdiction of Misamis Occidental were represented under the historical Misamis Province (1907–1931).
Even after receiving their own city charters, Ozamiz, Tangub and Oroquieta remained part of the representation of the Province of Misamis Occidental by virtue of Section 89 of Republic Act No. 321 (June 19, 1948),[2] Section 88 of Republic Act No. 5131 (June 17, 1967),[3] and Section 106 of Republic Act No. 5518 (June 21, 1969),[4] respectively.
Under the new Constitution which was proclaimed on February 11, 1987, the province was reapportioned into two congressional districts;[5] each elected its member to the restored House of Representatives starting that same year.
^Proclaimed winner of 1998 election, but died on July 15, 1998, before the opening of the 11th Congress. Seat deemed vacant on July 30, 1998, by House of Representatives Electoral Tribunal, and remained so until the end of the 11th Congress.[7]
^Prematurely proclaimed winner of 1961 election and took oath of office as member of 5th Congress, but did not assume seat. Proclamation later voided by the Supreme Court.[7]