 It is the county seat of Grundy County.The city used to be the world's largest producer of vienna sausages (at its biggest employer, the ConAgra Grocery Foods plant, now owned by Nestlé).The Crowder State Park Vehicle Bridge, Jewett Norris Library, Plaza Hotel, St. Philip's Episcopal Church, Trenton High School, and WPA Stock Barn and Pavilion are listed on the National Register of Historic Places.