Mercer is located in Mercer County Pennsylvania with a geographic area of 1.2 square miles. The total population in Mercer is 1,755 with 42.8% male and 57.2% female. Children under age 5 represent 9.4% of the population, under age 18 equal 21.3% of the population and over age 65 is 19.9% of the population. The median household income is $46,429, per capita income is $28,059. There are a total of 812 housing units with 63.2% owner occupied. Education includes 37.4% of residents that are high school graduates and 20.7% with a bachelor's degree or higher. The average temperature in Mercer in the summer is 73 degrees, and in the winter 33 degrees.
