Berlin is located in Somerset county Pennsylvania with a geographic area of 0.9 square miles. The total population in Berlin is 2,338 with 52.4% male and 47.6% female. Children under age 5 represent 7.1% of the population, under age 18 equal 21.6% of the population and over age 65 is 35.0% of the population. The median household income is $48,295, per capita income is $24,737. There are a total of 869 housing units with 75.6% owner occupied. Education includes 63.2% of residents that are high school graduates and 11.0% with a bachelor's degree or higher. The average temperature in Berlin in the summer is 73 degrees, and in the winter 33 degrees.