Leasburg is a village in Crawford County, Missouri, United States.

Leasburg was laid out in 1859, and named after Samuel Lea, a pioneer settler.

[6] The Scotia Iron Furnace Stack was listed on the National Register of Historic Places in 1969.

Onondaga Cave State Park is four miles to the southeast along Missouri Route H.[8] According to the United States Census Bureau, the village has a total area of 0.43 square miles (1.11 km2), all land.

41.7% of all households were made up of individuals, and 19.4% had someone living alone who was 65 years of age or older.

There were 162 housing units at an average density of 376.3 per square mile (145.3/km2).

35.4% of all households were made up of individuals, and 16.0% had someone living alone who was 65 years of age or older.