San luis is located in Costilla county Colorado with a geographic area of 0.6 square miles. The total population in San luis is 665 with 47.4% male and 52.6% female. Children under age 5 represent 4.7% of the population, under age 18 equal 16.1% of the population and over age 65 is 37.4% of the population. The median household income is $26,090, per capita income is $16,695. There are a total of 322 housing units with 53.7% owner occupied. Education includes 32.6% of residents that are high school graduates and 10.9% with a bachelor's degree or higher. The average temperature in San luis in the summer is 68 degrees, and in the winter 29 degrees.
