Marine is located in Madison county Illinois with a geographic area of 0.7 square miles. The total population in Marine is 994 with 51.1% male and 48.9% female. Children under age 5 represent 4.6% of the population, under age 18 equal 20.8% of the population and over age 65 is 17.3% of the population. The median household income is $63,750, per capita income is $29,434. There are a total of 416 housing units with 81.7% owner occupied. Education includes 29.8% of residents that are high school graduates and 22.8% with a bachelor's degree or higher. The average temperature in Marine in the summer is 74 degrees, and in the winter 27 degrees.
