Grafton is located in Lorain county Ohio with a geographic area of 4.9 square miles. The total population in Grafton is 6,017 with 81.3% male and 18.7% female. Children under age 5 represent 1.5% of the population, under age 18 equal 6.8% of the population and over age 65 is 9.7% of the population. The median household income is $67,455, per capita income is $14,939. There are a total of 795 housing units with 72.6% owner occupied. Education includes 29.9% of residents that are high school graduates and 25.2% with a bachelor's degree or higher. The average temperature in Grafton in the summer is 73 degrees, and in the winter 32 degrees.