Rockland is located in Knox county Maine with a geographic area of 12.8 square miles. The total population in Rockland is 7,172 with 45.3% male and 54.7% female. Children under age 5 represent 4.0% of the population, under age 18 equal 15.7% of the population and over age 65 is 22.7% of the population. The median household income is $46,895, per capita income is $30,043. There are a total of 3,586 housing units with 61.9% owner occupied. Education includes 32.3% of residents that are high school graduates and 29.2% with a bachelor's degree or higher. The average temperature in Rockland in the summer is 65 degrees, and in the winter 25 degrees.
