Hahnville is locate in the parish of St. Charles. It covers a total area of 23.0 sq. km. The economy of the city revolves around industries involved in automotive, chemicals, freight forwarding, real estate, transport and tourism. The local educated and trained workforce is engaged in service-oriented jobs related to recycling, truck repairing, legal counseling, childcare and health, contribute to the local economy in a positive way. Commercial spaces are utilized by bridal shops, convenience stores, department stores, garden centers, libraries and campgrounds.