Sibley is located in Osceola county Iowa with a geographic area of 1.8 square miles. The total population in Sibley is 2,599 with 48.6% male and 51.4% female. Children under age 5 represent 7.2% of the population, under age 18 equal 25.9% of the population and over age 65 is 25.5% of the population. The median household income is $57,857, per capita income is $30,079. There are a total of 1,080 housing units with 71.5% owner occupied. Education includes 33.8% of residents that are high school graduates and 14.5% with a bachelor's degree or higher. The average temperature in Sibley in the summer is 68 degrees, and in the winter 23 degrees.
