Callaway is located in St. mary's county Maryland with a geographic area of 4.8 square miles. The total population in Callaway is 1,320 with 51.4% male and 48.6% female. Children under age 5 represent 8.1% of the population, under age 18 equal 22.9% of the population and over age 65 is 15.7% of the population. The median household income is $62,262, per capita income is $35,059. There are a total of 566 housing units with 68.7% owner occupied. Education includes 13.6% of residents that are high school graduates and 26.7% with a bachelor's degree or higher. The average temperature in Callaway in the summer is 74 degrees, and in the winter 37 degrees.
