Alton is a city in Osborne County, Kansas, United States. As of the 2010 census, the city population was 103.
Alton is located at 39°28′6″N 98°56′50″W / 39.46833°N 98.94722°W / 39.46833; -98.94722 (39.468196, −98.947360). According to the United States Census Bureau, the city has a total area of 0.31 square miles (0.80 km), all of it land.
As of the census of 2010, there were 103 people, 47 households, and 22 families residing in the city. The population density was 332.3 inhabitants per square mile (128.3/km). There were 68 housing units at an average density of 219.4 per square mile (84.7/km). The racial makeup of the city was 97.1% White and 2.9% from two or more races.
There were 47 households of which 21.3% had children under the age of 18 living with them, 38.3% were married couples living together, 8.5% had a female householder with no husband present, and 53.2% were non-families. 40.4% of all households were made up of individuals and 21.3% had someone living alone who was 65 years of age or older. The average household size was 2.19 and the average family size was 2.77.
The median age in the city was 48.3 years. 18.4% of residents were under the age of 18; 6% were between the ages of 18 and 24; 22.4% were from 25 to 44; 25.3% were from 45 to 64; and 28.2% were 65 years of age or older. The gender makeup of the city was 52.4% male and 47.6% female.
As of the census of 2000, there were 117 people, 58 households, and 33 families residing in the city. The population density was 373.7 people per square mile (145.7/km²). There were 79 housing units at an average density of 252.3 per square mile (98.4/km²). The racial makeup of the city was 98.29% White, and 1.71% from two or more races. Hispanic or Latino of any race were 1.71% of the population.
There were 58 households out of which 25.9% had children under the age of 18 living with them, 48.3% were married couples living together, 5.2% had a female householder with no husband present, and 41.4% were non-families. 37.9% of all households were made up of individuals and 15.5% had someone living alone who was 65 years of age or older. The average household size was 2.02 and the average family size was 2.65.
In the city, the population was spread out with 18.8% under the age of 18, 9.4% from 18 to 24, 26.5% from 25 to 44, 21.4% from 45 to 64, and 23.9% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 95.0 males. For every 100 females age 18 and over, there were 106.5 males.
The median income for a household in the city was $23,750, and the median income for a family was $33,125. Males had a median income of $20,000 versus $21,875 for females. The per capita income for the city was $15,584. There were 7.4% of families and 17.6% of the population living below the poverty line, including 9.1% of under eighteens and 8.0% of those over 64.