Formed February 18, 1913 (33rd county)
Madison County (52,908), Rexburg (39,423)
The Beaux Arts and Classical Revival style masonry courthouse for Madison County was constructed in 1920. It is sited at Main Street between East 1st and 2nd streets. Idaho State Highway 33 passes in front of the courthouse. C. A. Sundberg is the building designer. A county Administration Building was later added. The county was carved from Fremont County on February 18, 1913 as the 33rd county with Rexburg as the only county seat. President James Madison provided his name to the county. The county seat name is derived from Mormon Church leader Thomas Ricks and obviously misspelled.
Madison County government consists of a sheriff, a prosecuter, a coroner, a clerk, a treasurer, and an assessor (executive). It has 3 Commissioners (legislative.) Five Circuit Court Judges and a Magistrate Court Judge serve Madison, Bingham, Bonneville, Butte, Clark, Custer, Fremont, Jefferson, Lemhi, and Teton counties (judicial.) Madison County is in southeast Idaho. Idaho Falls, Idaho is south and Yellowstone National Park is northeast of the county. The county center is 16.6 miles East-Southeast of Rexburg nearer Newdale. The county is surrounded clockwise by Fremont, Teton, Bonner, and Jefferson counties.
The area of the county is 472 square miles. It is 42 out of 44 in the state. It ranks 7 out of 44 in population in the state. It has a density of 112.1 persons per square mile making it 4 out of 44 in the state. Madison County has 77.8% of its population in its incorporated areas. United States Highway 20 enters the county from the north, Fremont County, and exits to the south, Jefferson County. The county has the appearance of a goblet on its side. Rexburg is in the northwest quarter of the county. Rexburg is the county seat and the largest city. It is 74.5% of the county population. The county seat is pronounced REKS-BURG. This county is in the Rexburg Micropolitan Statistical Area.
Rexburg
Sugar City
