Ossian is located in Winneshiek county Iowa with a geographic area of 1.1 square miles. The total population in Ossian is 798 with 51.8% male and 48.2% female. Children under age 5 represent 3.8% of the population, under age 18 equal 16.7% of the population and over age 65 is 29.7% of the population. The median household income is $52,404, per capita income is $33,847. There are a total of 403 housing units with 87.6% owner occupied. Education includes 41.4% of residents that are high school graduates and 26.1% with a bachelor's degree or higher. The average temperature in Ossian in the summer is 71 degrees, and in the winter 23 degrees.