Nelson is located in Saline county Missouri with a geographic area of 0.3 square miles. The total population in Nelson is 162 with 47.5% male and 52.5% female. Children under age 5 represent 9.3% of the population, under age 18 equal 26.5% of the population and over age 65 is 16.7% of the population. The median household income is $53,864, per capita income is $21,453. There are a total of 62 housing units with 72.6% owner occupied. Education includes 22.6% of residents that are high school graduates and 8.1% with a bachelor's degree or higher. The average temperature in Nelson in the summer is 75 degrees, and in the winter 32 degrees.