Corvallis is located in Ravalli county Montana with a geographic area of 0.6 square miles. The total population in Corvallis is 1,755 with 58.7% male and 41.3% female. Children under age 5 represent 7.6% of the population, under age 18 equal 27.4% of the population and over age 65 is 19.5% of the population. The median household income is $52,689, per capita income is $19,289. There are a total of 570 housing units with 63.9% owner occupied. Education includes 69.3% of residents that are high school graduates and 8.8% with a bachelor's degree or higher. The average temperature in Corvallis in the summer is 69 degrees, and in the winter 27 degrees.