Spring green is located in Sauk county Wisconsin with a geographic area of 1.7 square miles. The total population in Spring green is 1,633 with 48.9% male and 51.1% female. Children under age 5 represent 6.7% of the population, under age 18 equal 23.0% of the population and over age 65 is 23.6% of the population. The median household income is $70,179, per capita income is $34,642. There are a total of 679 housing units with 72.3% owner occupied. Education includes 15.6% of residents that are high school graduates and 38.6% with a bachelor's degree or higher. The average temperature in Spring green in the summer is 66 degrees, and in the winter 17 degrees.