St. helen is located in Roscommon county Michigan with a geographic area of 5.7 square miles. The total population in St. helen is 2,868 with 48.6% male and 51.4% female. Children under age 5 represent 3.7% of the population, under age 18 equal 12.3% of the population and over age 65 is 31.2% of the population. The median household income is $34,753, per capita income is $19,299. There are a total of 1,395 housing units with 75.9% owner occupied. Education includes 41.6% of residents that are high school graduates and 4.7% with a bachelor's degree or higher. The average temperature in St. helen in the summer is 67 degrees, and in the winter 23 degrees.