Denver is located in Lancaster county Pennsylvania with a geographic area of 1.3 square miles. The total population in Denver is 3,847 with 49.9% male and 50.1% female. Children under age 5 represent 5.7% of the population, under age 18 equal 27.2% of the population and over age 65 is 18.1% of the population. The median household income is $65,847, per capita income is $27,768. There are a total of 1,519 housing units with 75.1% owner occupied. Education includes 39.8% of residents that are high school graduates and 24.9% with a bachelor's degree or higher. The average temperature in Denver in the summer is 73 degrees, and in the winter 33 degrees.