Valmeyer is located in Monroe county Illinois with a geographic area of 3.4 square miles. The total population in Valmeyer is 1,208 with 48.1% male and 51.9% female. Children under age 5 represent 2.6% of the population, under age 18 equal 25.4% of the population and over age 65 is 14.4% of the population. The median household income is $82,083, per capita income is $33,276. There are a total of 430 housing units with 77.9% owner occupied. Education includes 30.9% of residents that are high school graduates and 35.1% with a bachelor's degree or higher. The average temperature in Valmeyer in the summer is 74 degrees, and in the winter 27 degrees.