Columbia is located in Tolland county Connecticut with a geographic area of square miles. The total population in Columbia is 5,402 with 59.0% male and 41.0% female. Children under age 5 represent 3.3% of the population, under age 18 equal 15.0% of the population and over age 65 is 22.3% of the population. The median household income is $104,911, per capita income is $51,078. There are a total of 2,357 housing units with 83.8% owner occupied. Education includes 24.1% of residents that are high school graduates and 35.7% with a bachelor's degree or higher. The average temperature in Columbia in the summer is 68 degrees, and in the winter 27 degrees.
