Lansdowne is located in Delaware county Pennsylvania with a geographic area of 1.2 square miles. The total population in Lansdowne is 10,637 with 48.9% male and 51.1% female. Children under age 5 represent 4.4% of the population, under age 18 equal 17.7% of the population and over age 65 is 17.1% of the population. The median household income is $63,224, per capita income is $36,846. There are a total of 4,698 housing units with 64.5% owner occupied. Education includes 26.6% of residents that are high school graduates and 41.1% with a bachelor's degree or higher. The average temperature in Lansdowne in the summer is 73 degrees, and in the winter 33 degrees.