The Fourth Michigan Territorial Council was a meeting of the legislative body governing Michigan Territory, known formally as the Legislative Council of the Territory of Michigan. The council met in Detroit in two regular sessions between May 11, 1830, and March 4, 1831, during the terms of Lewis Cass and George B. Porter as territorial governor.^[1]

Abraham Edwards was president of the council, Edmund A. Brush secretary, and William Meldrum sergeant-at-arms.^[1]

A January 1827 act of the United States Congress provided for the direct election of a 13-member legislative council by the people of the territory; the same act gave the council responsibility for determining the apportionment of seats.^[2] The council apportioned the seats as follows in an 1828 act:^[3]

... the county of Wayne shall form the first electoral district, and shall be entitled to elect four members; the counties of Monroe and Lenawe shall form the second district, and shall be entitled to elect three members; the counties of Macomb and St. Clair shall form the third district, and shall be entitled to elect one member; the county of Oakland shall form the fourth district, and shall be entitled to elect two members; the county of Washtenaw shall form the fifth district, and shall be entitled to elect one member; and the counties of Michilimackinac, Brown, Crawford, and Chippewa shall form the sixth district, and shall be entitled to elect two members of the legislative council.