Lone Jack is a city in Jackson County, Missouri, United States.

[5] Its name comes from a single black jack tree that stood as a local landmark.

[7] On August 16, 1862, Federal troops were defeated in the Battle of Lone Jack by a much larger Confederate force.

The fighting literally occurred on the main street and raged for five hours before the Federals withdrew.

The Confederates were unable to hold the town following their victory because of converging Union forces from other commands.

[9] According to the United States Census Bureau, the city has a total area of 3.75 square miles (9.71 km2), all land.

14.8% of all households were made up of individuals, and 2.7% had someone living alone who was 65 years of age or older.

20.3% of all households were made up of individuals, and 5.0% had someone living alone who was 65 years of age or older.