Imperial Calcasieu Human Services Authority – Jefferson DavisBy Michelle / March 14, 2023 Location Details Imperial Calcasieu Human Services Authority – Jefferson Davis 437 North Market Street, Jennings, LA, USA PH. 337-246-7325 FX. 337-246-7328 W. https://imcalhsa.org/ Services: Outpatient Parishes Served: Jefferson Davis View All Locations