How much would car insurance cost for a 16-year-old male in Louisiana?

That depends largely on which company you go with, what your deductables are going to be, which type of coverage you choose, what type of vehicle you drive and your driving record. You can expect it to be higher than the average driver's, though; young males are a high liability where cars are concerned, so coverage often costs more. I recommend you this site where you can compare quotes from different companies: mycheapinsurance.net