Meridian is located in Ada county Idaho with a geographic area of 35.1 square miles. The total population in Meridian is 107,787 with 49.7% male and 50.3% female. Children under age 5 represent 6.8% of the population, under age 18 equal 28.2% of the population and over age 65 is 12.4% of the population. The median household income is $76,403, per capita income is $36,614. There are a total of 38,049 housing units with 76.8% owner occupied. Education includes 17.8% of residents that are high school graduates and 40.3% with a bachelor's degree or higher. The average temperature in Meridian in the summer is 70 degrees, and in the winter 24 degrees.