Olin is located in Jones county Iowa with a geographic area of 1.0 square miles. The total population in Olin is 966 with 51.4% male and 48.6% female. Children under age 5 represent 3.8% of the population, under age 18 equal 24.9% of the population and over age 65 is 9.7% of the population. The median household income is $55,417, per capita income is $19,964. There are a total of 329 housing units with 71.1% owner occupied. Education includes 40.7% of residents that are high school graduates and 7.6% with a bachelor's degree or higher. The average temperature in Olin in the summer is 70 degrees, and in the winter 23 degrees.