Lower salem is located in Washington county Ohio with a geographic area of 0.1 square miles. The total population in Lower salem is 126 with 39.7% male and 60.3% female. Children under age 5 represent 11.9% of the population, under age 18 equal 31.0% of the population and over age 65 is 16.7% of the population. The median household income is $61,667, per capita income is $23,528. There are a total of 46 housing units with 50.0% owner occupied. Education includes 21.7% of residents that are high school graduates and 28.3% with a bachelor's degree or higher. The average temperature in Lower salem in the summer is 73 degrees, and in the winter 32 degrees.