All campgrounds are even damaged or being rented by relief workers or FEMA trailer parks. I would use at campground guide and find if there are any near Hammond, Houma.
Hi jlr, not being a camper myself, Bayou Segnette is the only one I am even familiar with. You could try these websites, www.allstays.com, www.koakampgrounds.com, www.neworleanslodging.worldweb.com
/campgrounds or the New Orleans Convention and Visitor's Bureau website www.neworleanscvb.com, they might have some info for you.