Greenview is located in Menard county Illinois with a geographic area of 0.9 square miles. The total population in Greenview is 920 with 49.0% male and 51.0% female. Children under age 5 represent 5.3% of the population, under age 18 equal 25.2% of the population and over age 65 is 16.6% of the population. The median household income is $54,659, per capita income is $25,128. There are a total of 397 housing units with 75.8% owner occupied. Education includes 54.2% of residents that are high school graduates and 5.8% with a bachelor's degree or higher. The average temperature in Greenview in the summer is 74 degrees, and in the winter 27 degrees.