Colfax is located in Livingston county Illinois with a geographic area of 0.6 square miles. The total population in Colfax is 1,088 with 41.9% male and 58.1% female. Children under age 5 represent 3.5% of the population, under age 18 equal 31.2% of the population and over age 65 is 15.1% of the population. The median household income is $58,889, per capita income is $24,861. There are a total of 348 housing units with 76.4% owner occupied. Education includes 38.8% of residents that are high school graduates and 18.4% with a bachelor's degree or higher. The average temperature in Colfax in the summer is 74 degrees, and in the winter 27 degrees.