Callahan is located in Nassau county Florida with a geographic area of 1.8 square miles. The total population in Callahan is 1,408 with 40.1% male and 59.9% female. Children under age 5 represent 4.1% of the population, under age 18 equal 18.3% of the population and over age 65 is 21.9% of the population. The median household income is $56,645, per capita income is $24,666. There are a total of 565 housing units with 60.2% owner occupied. Education includes 39.3% of residents that are high school graduates and 18.1% with a bachelor's degree or higher. The average temperature in Callahan in the summer is 80 degrees, and in the winter 56 degrees.
