Hahnville is a city located in St. Charles Parish Louisiana. Hahnville has a 2020 population of 3,269. Hahnville is currently declining at a rate of 0.00% annually and its population has decreased by -2.24% since the most recent census, which recorded a population of 3,344 in 2010. Hahnville reached it's highest population of 3,540 in 2015.
The average household income in Hahnville is $73,952 with a poverty rate of 15.83%. The median rental costs in recent years comes to $574 per month, and the median house value is $170,900. The median age in Hahnville is 45.6 years, 42 years for males, and 50.6 years for females.