Huntsville is located in Logan county Ohio with a geographic area of 0.3 square miles. The total population in Huntsville is 492 with 55.7% male and 44.3% female. Children under age 5 represent 3.9% of the population, under age 18 equal 11.4% of the population and over age 65 is 14.4% of the population. The median household income is $72,679, per capita income is $36,280. There are a total of 235 housing units with 65.5% owner occupied. Education includes 52.8% of residents that are high school graduates and 4.7% with a bachelor's degree or higher. The average temperature in Huntsville in the summer is 73 degrees, and in the winter 32 degrees.