Hahnville is located in St. charles county Louisiana with a geographic area of 5.6 square miles. The total population in Hahnville is 3,609 with 50.7% male and 49.3% female. Children under age 5 represent 1.2% of the population, under age 18 equal 21.0% of the population and over age 65 is 10.9% of the population. The median household income is $64,883, per capita income is $32,434. There are a total of 1,263 housing units with 74.0% owner occupied. Education includes 37.6% of residents that are high school graduates and 18.8% with a bachelor's degree or higher. The average temperature in Hahnville in the summer is 81 degrees, and in the winter 51 degrees.
