Castalia is located in Nash county North carolina with a geographic area of 0.8 square miles. The total population in Castalia is 276 with 56.9% male and 43.1% female. Children under age 5 represent 0.0% of the population, under age 18 equal 13.0% of the population and over age 65 is 33.7% of the population. The median household income is $32,292, per capita income is $22,311. There are a total of 121 housing units with 86.0% owner occupied. Education includes 55.4% of residents that are high school graduates and 10.7% with a bachelor's degree or higher. The average temperature in Castalia in the summer is 75 degrees, and in the winter 38 degrees.
