Pine grove mills is located in Centre county Pennsylvania with a geographic area of 2.5 square miles. The total population in Pine grove mills is 1,635 with 50.2% male and 49.8% female. Children under age 5 represent 2.0% of the population, under age 18 equal 11.5% of the population and over age 65 is 17.7% of the population. The median household income is $105,899, per capita income is $48,837. There are a total of 785 housing units with 100.0% owner occupied. Education includes 24.1% of residents that are high school graduates and 51.1% with a bachelor's degree or higher. The average temperature in Pine grove mills in the summer is 73 degrees, and in the winter 33 degrees.