Grundy County is located in north-central Missouri and is part of the Kansas City metropolitan area. The county seat is Trenton. The County was organized in 1841.

The county is governed by a three-member county commission, elected in nonpartisan elections to serve four-year terms. The county also has a sheriff, prosecuting attorney, assessor, collector, and other elected officials.

The county is home to several state parks, including Big Lake State Park, which offers camping, fishing, and boating. Other attractions include the Grundy County Museum, which features artifacts from the county's history, and the Grundy County Fair, held annually in July.

For the most up-to-date and in-depth information, please check the public records links below.