Chillicothe was laid out in 1849 and was incorporated in 1881. The word "Chillicothe" is derived from the ancient Shawnee Indian words meaning "Principal Place." It was the name for one of their clans. The main chief of the Shawnee could only come from the Chillicothe clan. When a village was called Chillicothe, it meant that it was home to the principal chief. It was the capital city of the Shawnees until the death of that chief. Then, the capitol would move to the home village of the next main chief. That village would then become Chillicothe. Chillicothe is the burial place of the oldest man to serve in the Civil War, Curtis King.
Geography
Chillicothe is located at . According to the United States Census Bureau, the city has a total area of, of which is land and is water.
As of the census of 2010, there were 97 people, 35 households, and 21 families residing in the city. The population density was. There were 45 housing units at an average density of. The racial makeup of the city was 100.0% White. Hispanic or Latino of any race were 1.0% of the population. There were 35 households of which 37.1% had children under the age of 18 living with them, 48.6% were married couplesliving together, 5.7% had a female householder with no husband present, 5.7% had a male householder with no wife present, and 40.0% were non-families. 28.6% of all households were made up of individuals and 8.6% had someone living alone who was 65 years of age or older. The average household size was 2.77 and the average family size was 3.33. The median age in the city was 35.5 years. 27.8% of residents were under the age of 18; 12.4% were between the ages of 18 and 24; 22.7% were from 25 to 44; 27.9% were from 45 to 64; and 9.3% were 65 years of age or older. The gender makeup of the city was 48.5% male and 51.5% female.
2000 census
As of the census of 2000, there were 90 people, 38 households, and 25 families residing in the city. The population density was 395.7 people per square mile. There were 44 housing units at an average density of 193.4 per square mile. The racial makeup of the city was 97.78% White, 1.11% Asian, and 1.11% from two or more races. There were 38 households out of which 28.9% had children under the age of 18 living with them, 50.0% were married couples living together, 7.9% had a female householder with no husband present, and 34.2% were non-families. 28.9% of all households were made up of individuals and 10.5% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 2.96. Population spread: 27.8% under the age of 18, 5.6% from 18 to 24, 26.7% from 25 to 44, 30.0% from 45 to 64, and 10.0% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 114.3 males. For every 100 females age 18 and over, there were 109.7 males. The median income for a household in the city was $30,781, and the median income for a family was $31,750. Males had a median income of $25,417 versus $25,625 for females. The per capita income for the city was $19,075. There were 12.0% of families and 13.8% of the population living below the poverty line, including 33.3% of under eighteens and none of those over 64.
