The 33rd district was created in 1953, as dictated by the 1908 Michigan Constitution.

[2] The previous 1850 constitution only allowed for 32 senate districts.

[5] District 33, as dictated by the 2011 Apportionment Plan, covered all of Clare, Gratiot, Isabella, Mecosta, and Montcalm Counties in the dead center of the state.

Communities in the district included Mount Pleasant, Big Rapids, Alma, St. Louis, Greenville, Clare, Harrison, Ithaca, Canadian Lakes, and Union Township.

It overlapped with the 70th, 93rd, 97th, 99th, and 102nd districts of the Michigan House of Representatives.