Sidney is a town in Jackson Township, Kosciusko County, in the U.S. state of Indiana. The population was 83 at the 2010 census. History Sidney was platted in the year 1881 when the railroad was extended to that point. The Sidney post office was established in 1882. Sidney was incorporated as a town in 1914. Geography Sidney is located at (41.105140, -85.743074). According to the 2010 census, Sidney has a total area of , of which (or 96%) is land and (or 4%) is water. Demographics 2010 census As of the census of 2010, there were 83 people, 34 households, and 25 families living in the town. The population density was . There were 41 housing units at an average density of . The racial makeup of the town was 100.0% White. Hispanic or Latino of any race were 3.6% of the population. There were 34 households, of which 35.3% had children under the age of 18 living with them, 58.8% were married couples living together, 8.8% had a female householder with no husband present, 5.9% had a male householder with no wife present, and 26.5% were non-families. 26.5% of all households were made up of individuals, and 17.6% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.84. The median age in the town was 42.3 years. 25.3% of residents were under the age of 18; 4.7% were between the ages of 18 and 24; 26.4% were from 25 to 44; 20.4% were from 45 to 64; and 22.9% were 65 years of age or older. The gender makeup of the town was 45.8% male and 54.2% female. 2000 census As of the census of 2000, there were 168 people, 62 households, and 46 families living in the town. The population density was . There were 69 housing units at an average density of . The racial makeup of the town was 98.21% White, 0.60% Pacific Islander, and 1.19% from two or more races. Hispanic or Latino of any race were 0.60% of the population. There were 62 households, out of which 33.9% had children under the age of 18 living with them, 66.1% were married couples living together, 8.1% had a female householder with no husband present, and 24.2% were non-families. 21.0% of all households were made up of individuals, and 9.7% had