Ohio, Illinois

A post office called Ohio has been in operation since 1854.[4] The village was named after the state of Ohio.[5]

Ohio is located at 41°33′25″N 89°27′40″W (41.556900, -89.460995).[6]

According to the 2010 census, Ohio has a total area of 0.8 square miles (2.07 km²), all land.[7]

As of the census[9] of 2000, there were 540 people, 219 households, and 146 families residing in the village. The population density was 717.3 people per square mile (278.0/km²). There were 241 housing units at an average density of 320.1 per square mile (124.1/km²). The racial makeup of the village was 99.07% White, 0.37% African American, 0.37% from other races, and 0.19% from two or more races. Hispanic or Latino of any race were 2.78% of the population.

There were 219 households, out of which 32.0% had children under the age of 18 living with them, 56.6% were married couples living together, 7.8% had a female householder with no husband present, and 32.9% were non-families. 28.8% of all households were made up of individuals, and 16.9% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.07.

In the village, the population was spread out, with 26.9% under the age of 18, 8.3% from 18 to 24, 26.7% from 25 to 44, 22.6% from 45 to 64, and 15.6% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 92.9 males. For every 100 females age 18 and over, there were 86.3 males.

The median income for a household in the village was $40,179, and the median income for a family was $50,833. Males had a median income of $39,500 versus $20,208 for females. The per capita income for the village was $18,858. About 2.8% of families and 3.6% of the population were below the poverty line, including none of those under age 18 and 12.2% of those age 65 or over.