St. ignatius is located in Lake county Montana with a geographic area of 0.5 square miles. The total population in St. ignatius is 785 with 49.7% male and 50.3% female. Children under age 5 represent 8.7% of the population, under age 18 equal 30.4% of the population and over age 65 is 18.7% of the population. The median household income is $40,694, per capita income is $16,785. There are a total of 268 housing units with 67.2% owner occupied. Education includes 35.1% of residents that are high school graduates and 19.8% with a bachelor's degree or higher. The average temperature in St. ignatius in the summer is 69 degrees, and in the winter 27 degrees.
