Spencerville is located in Allen county Ohio with a geographic area of 1.0 square miles. The total population in Spencerville is 2,204 with 50.7% male and 49.3% female. Children under age 5 represent 11.3% of the population, under age 18 equal 35.5% of the population and over age 65 is 16.2% of the population. The median household income is $36,833, per capita income is $18,550. There are a total of 850 housing units with 58.0% owner occupied. Education includes 39.6% of residents that are high school graduates and 9.8% with a bachelor's degree or higher. The average temperature in Spencerville in the summer is 73 degrees, and in the winter 32 degrees.
