Cincinnati is located in Appanoose county Iowa with a geographic area of 1.8 square miles. The total population in Cincinnati is 268 with 46.3% male and 53.7% female. Children under age 5 represent 4.1% of the population, under age 18 equal 16.4% of the population and over age 65 is 26.5% of the population. The median household income is $46,250, per capita income is $24,499. There are a total of 116 housing units with 95.7% owner occupied. Education includes 26.7% of residents that are high school graduates and 22.4% with a bachelor's degree or higher. The average temperature in Cincinnati in the summer is 73 degrees, and in the winter 23 degrees.