• Welcome to Madison County, Idaho

    Madison County is located in Idaho's Upper Snake River Valley. Named for James Madison, the fourth president of the United States, it was established February 18, 1913 with the county seat at Rexburg. As of 2016 the population was 39,048. This website provides a cost-effective way for our county to provide information and communicate with our community.

Government & Politics

Similar to other Idaho counties, an elected three-member county commission heads the county government. Other elected officials include clerk, treasurer, sheriff, assessor, coroner, and prosecutor.

 With a strongly conservative population, Madison County is one of the most staunchly Republican counties in the United States. Since 1980 no Republican presidential candidate has failed to carry the county with less than 59 percent of the vote. In that same period Republican presidential candidates polled more than 90 percent of the county's vote on two occasions, Ronald Reagan in 1984 and George W. Bush in 2004. John McCain came close to this level in 2008, drawing 85 percent of the vote.
 
At the state level Madison County is located in Legislative District 34, which currently has an all-Republican delegation in the Idaho Legislature.

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Upcoming Events

Monday
27
Nov
Category: Board of County Commissioners
Starts at: 09:00 AM
Monday
11
Dec
Category: Board of County Commissioners
Starts at: 09:00 AM
Monday
18
Dec
Category: Board of County Commissioners
Starts at: 09:00 AM