Waterloo, IL politics & representatives
Waterloo is represented in Congress by Senators Richard J. Durbin and Tammy Duckworth and Representative Mike Bost. J. B. Pritzker is governor.
Who represents Waterloo in Washington and in Illinois, with how to reach each office.
How Monroe County voted in 2024
Official results for all of Monroe County. Waterloo's own results aren't published in a form we can match to the town exactly, so these are the county's.
President 21,027 votes
Illinois: Harris 54.4%, Trump 43.5%
U.S. House · Illinois's 12th District 367,629 votes
Whole-district result
Source: MIT Election Data + Science Lab, official 2024 precinct returns (statewide totals from its official state files). Percentages are of votes for candidates; blank and spoiled ballots aren't counted.
Who represents Waterloo in Congress
U.S. Senate Both senators represent all of Illinois
U.S. House · Illinois's 12th District
Who represents Waterloo in state government
State Senate · District 58
State House · District 115
Waterloo's own government: Town Hall →
Sources: congressional and state legislative districts from the U.S. Census Bureau (119th Congress, 2024 state districts); members of Congress from the congress-legislators project (portraits public domain); governors and state legislators from Open States. Districts are matched to Waterloo by land area, so if the town is split, your street decides which one is yours.