Cambridge is located in Guernsey county Ohio with a geographic area of 6.4 square miles. The total population in Cambridge is 10,398 with 48.0% male and 52.0% female. Children under age 5 represent 8.7% of the population, under age 18 equal 23.0% of the population and over age 65 is 18.1% of the population. The median household income is $35,124, per capita income is $20,818. There are a total of 4,574 housing units with 46.7% owner occupied. Education includes 42.1% of residents that are high school graduates and 14.8% with a bachelor's degree or higher. The average temperature in Cambridge in the summer is 72 degrees, and in the winter 32 degrees.