Hallsville is a city in Boone County, Missouri. It is allocation of the Columbia metropolitan area. The population was 1,614 at the become old of the 2020 census. Southeast of the town is Mount Zion Church and Cemetery, the site of the Battle of Mount Zion Church during the Civil War.

Hallsville was laid out in 1866. It was named for its first postmaster, Judge John W. Hall. The town was not platted originally, having grown naturally at a crossroads something like a accrual and blacksmith. The Columbia Terminal Railroad platted the town of Hickman and installed a depot a half mile south, but Hallsville grew and Hickman did not.

Colonel William F. Switzler reported that in 1882, Hallsville contained five stores, one harness shop and one blacksmith shop, but no church or school home yet. The population was 65. During the Civil War, on 22 September 1863, the Mount Zion Church east of Hallsville was burned by northern troops. According to one affirmation by William Franklin Switzler, this was because Iowa Lieutenant Hartman found the church to be a “bushwhacker’s nest.” The church was rebuilt in 1861, torn the length of and rebuilt in 1903, and nevertheless stands. Hallsville is as a consequence the hometown to the well-known painter in the 20th century Charles Morgenthaler. Charles Morgenthaler expected his art education at the University of Missouri and the Art Institute of Chicago. He highly developed moved to St. Louis, where he became a flourishing illustrator and mural painter.

Hallsville is located at 39°7′1″N 92°13′14″W / 39.11694°N 92.22056°W / 39.11694; -92.22056 (39.116956, -92.220571). According to the United States Census Bureau, the city has a total area of 1.33 square miles (3.44 km²), all land.