Willow creek is located in Gallatin county Montana with a geographic area of 2.7 square miles. The total population in Willow creek is 216 with 48.6% male and 51.4% female. Children under age 5 represent 7.9% of the population, under age 18 equal 25.0% of the population and over age 65 is 17.1% of the population. The median household income is $50,833, per capita income is $26,616. There are a total of 104 housing units with 74.0% owner occupied. Education includes 47.1% of residents that are high school graduates and 13.5% with a bachelor's degree or higher. The average temperature in Willow creek in the summer is 69 degrees, and in the winter 27 degrees.