In 1863 a brief skirmish occurred just outside Leavenworth saw Confederate troops under the command of Captain Thomas Hines fight Indiana Home Guards.
According to the United States Census Bureau, the town has a total area of 0.9 square miles (2.3 km²), of which, 0.8 square miles (2.1 km²) of it is land and 0.1 square miles (0.1 km²) of it (5.68%) is water.
There were 123 households out of which 28.5% had children under the age of 18 living with them, 48.8% were married couples living together, 19.5% had a female householder with no husband present, and 29.3% were non-families. 28.5% of all households were made up of individuals and 15.4% had someone living alone who was 65 years of age or older. The average household size was 2.25 and the average family size was 2.70.
In the town the population was spread out with 17.6% under the age of 18, 6.8% from 18 to 24, 20.4% from 25 to 44, 22.9% from 45 to 64, and 32.3% who were 65 years of age or older. The median age was 48 years. For every 100 females there were 90.8 males. For every 100 females age 18 and over, there were 84.2 males.
The median income for a household in the town was $24,375, and the median income for a family was $36,250. Males had a median income of $26,250 versus $20,000 for females. The per capita income for the town was $15,717. About 14.5% of families and 18.6% of the population were below the poverty line, including 29.7% of those under age 18 and 6.9% of those age 65 or over.