Columbia is located in Lancaster county Pennsylvania with a geographic area of 2.4 square miles. The total population in Columbia is 10,369 with 51.1% male and 48.9% female. Children under age 5 represent 6.5% of the population, under age 18 equal 20.1% of the population and over age 65 is 21.1% of the population. The median household income is $41,607, per capita income is $25,571. There are a total of 4,493 housing units with 51.5% owner occupied. Education includes 41.5% of residents that are high school graduates and 16.7% with a bachelor's degree or higher. The average temperature in Columbia in the summer is 73 degrees, and in the winter 33 degrees.
