Baldwin is located in Allegheny county Pennsylvania with a geographic area of 5.8 square miles. The total population in Baldwin is 19,667 with 48.6% male and 51.4% female. Children under age 5 represent 4.8% of the population, under age 18 equal 20.2% of the population and over age 65 is 20.1% of the population. The median household income is $68,705, per capita income is $35,800. There are a total of 8,330 housing units with 76.0% owner occupied. Education includes 32.2% of residents that are high school graduates and 32.6% with a bachelor's degree or higher. The average temperature in Baldwin in the summer is 73 degrees, and in the winter 33 degrees.