Dayton is located in Webster county Iowa with a geographic area of 0.9 square miles. The total population in Dayton is 839 with 52.7% male and 47.3% female. Children under age 5 represent 2.1% of the population, under age 18 equal 19.5% of the population and over age 65 is 23.6% of the population. The median household income is $61,406, per capita income is $31,239. There are a total of 359 housing units with 70.5% owner occupied. Education includes 39.8% of residents that are high school graduates and 30.6% with a bachelor's degree or higher. The average temperature in Dayton in the summer is 71 degrees, and in the winter 23 degrees.