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about Cairo
Cairo is located in Alexander county Illinois with a geographic area of 7.0 square miles. The total population in Cairo is 1,884 with 46.5% male and 53.5% female. Children under age 5 represent 2.9% of the population, under age 18 equal 21.7% of the population and over age 65 is 23.3% of the population. The median household income is $27,661, per capita income is $19,661. There are a total of 828 housing units with 69.8% owner occupied. Education includes 36.2% of residents that are high school graduates and 10.9% with a bachelor's degree or higher. The average temperature in Cairo in the summer is 79 degrees, and in the winter 27 degrees.
