Flat rock is located in Wayne county Michigan with a geographic area of 6.6 square miles. The total population in Flat rock is 9,974 with 51.1% male and 48.9% female. Children under age 5 represent 5.2% of the population, under age 18 equal 27.3% of the population and over age 65 is 11.6% of the population. The median household income is $57,277, per capita income is $28,014. There are a total of 3,602 housing units with 76.4% owner occupied. Education includes 32.8% of residents that are high school graduates and 18.8% with a bachelor's degree or higher. The average temperature in Flat rock in the summer is 71 degrees, and in the winter 23 degrees.