Armington is located in Tazewell county Illinois with a geographic area of 0.3 square miles. The total population in Armington is 415 with 46.7% male and 53.3% female. Children under age 5 represent 11.6% of the population, under age 18 equal 33.7% of the population and over age 65 is 9.4% of the population. The median household income is $41,250, per capita income is $19,451. There are a total of 147 housing units with 79.6% owner occupied. Education includes 51.7% of residents that are high school graduates and 12.2% with a bachelor's degree or higher. The average temperature in Armington in the summer is 74 degrees, and in the winter 27 degrees.