Marblehead is located in Ottawa county Ohio with a geographic area of 3.2 square miles. The total population in Marblehead is 858 with 52.2% male and 47.8% female. Children under age 5 represent 2.2% of the population, under age 18 equal 17.2% of the population and over age 65 is 36.8% of the population. The median household income is $80,417, per capita income is $42,218. There are a total of 397 housing units with 80.1% owner occupied. Education includes 23.7% of residents that are high school graduates and 34.8% with a bachelor's degree or higher. The average temperature in Marblehead in the summer is 73 degrees, and in the winter 32 degrees.
