Emergency Crime Scene and Biohazard Cleanup in Monroe City, MO

Monroe City is unusual in that it spreads across three counties at once — Monroe, Marion, and Ralls — in northeastern Missouri.

Monroe City was platted in 1857 and named simply for its location within Monroe County, and its post office has been in operation since 1860.

The 2020 census counted 2,652 people in Monroe City, a rebound of about 4.8 percent after the city dipped to 2,531 in 2010.

Monroe City had 1,083 households in the 2020 census, and more than a quarter of its residents — 26.4 percent — were under the age of 18.

U.S. Routes 24 and 36 split apart at Monroe City: US 36 heads west toward Macon as part of the Chicago–Kansas City Expressway, while US 24 runs through town as Main Street, and together they lead east 22 miles to Hannibal on the Mississippi River.

Three Monroe City buildings are listed on the National Register of Historic Places: the Farmers and Merchants Bank Building, St. Jude's Episcopal Church, and Washington School.

Public schools in Monroe City are run by the Monroe City R-I School District, and the town also has its own Monroe City Public Library.

Country music singer-songwriter Helen Cornelius, best known for duets with Jim Ed Brown, was a Monroe City native.

Composer Claude T. Smith, one of America's best-known writers of concert band music, is among Monroe City's notable natives.

Two surviving remnants of the original 8,000-year-old tallgrass prairie lie within a 40-mile radius of Monroe City.