Dearborn is located in Platte county Missouri with a geographic area of 0.8 square miles. The total population in Dearborn is 551 with 53.9% male and 46.1% female. Children under age 5 represent 6.2% of the population, under age 18 equal 32.1% of the population and over age 65 is 17.8% of the population. The median household income is $41,786, per capita income is $22,227. There are a total of 236 housing units with 64.8% owner occupied. Education includes 41.1% of residents that are high school graduates and 16.5% with a bachelor's degree or higher. The average temperature in Dearborn in the summer is 75 degrees, and in the winter 32 degrees.