Lima is located in Allen county Ohio with a geographic area of 13.6 square miles. The total population in Lima is 36,908 with 51.9% male and 48.1% female. Children under age 5 represent 7.7% of the population, under age 18 equal 24.9% of the population and over age 65 is 13.6% of the population. The median household income is $34,586, per capita income is $18,555. There are a total of 14,426 housing units with 46.4% owner occupied. Education includes 40.4% of residents that are high school graduates and 10.8% with a bachelor's degree or higher. The average temperature in Lima in the summer is 72 degrees, and in the winter 32 degrees.