Fieldon is located in Jersey county Illinois with a geographic area of 0.2 square miles. The total population in Fieldon is 153 with 54.2% male and 45.8% female. Children under age 5 represent 0.7% of the population, under age 18 equal 16.3% of the population and over age 65 is 31.4% of the population. The median household income is $38,750, per capita income is $26,424. There are a total of 76 housing units with 96.1% owner occupied. Education includes 56.6% of residents that are high school graduates and 2.6% with a bachelor's degree or higher. The average temperature in Fieldon in the summer is 74 degrees, and in the winter 27 degrees.