Louisburg is a hamlet in Lac qui Parle County, Minnesota, United States.

[5] A post office was established at Louisburg in 1888, and remained in operation until it was discontinued in 1992.

[6] According to the United States Census Bureau, the town has a total area of 0.30 square miles (0.78 km2), all land.

There were 30 housing units at an average density of 100.0 per square mile (38.6/km2).

11.1% of all households were made up of individuals, and 11.2% had someone living alone who was 65 years of age or older.

38.5% of all households were made up of individuals, and 15.4% had someone living alone who was 65 years of age or older.