Michigan's 4th congressional district is a United States Congressional district that from 2003 to 2013 included portions of Northern and Central Michigan, consisting of all of Clare, Grand Traverse, Gratiot, Isabella, Kalkaska, Leelanau, Mecosta, Midland, Missaukee, Montcalm, Osceola, and Roscommon counties and the northern portion of Shiawassee and most of the western portion of Saginaw counties. The district was slightly altered in the 2012 redistricting. The 4th is represented by John Moolenaar. This district has had Republican representation since the 1970s.