we need a list of Christian Radio and TV stations in Louisiana with
addresses, phones and demographics.

From www.christianradio.com
LA  KAJN - 102.9 FM  Crowley   
LA  KBMQ - 88.7 FM  Monroe    
LA  KHLL - 100.9 FM  Monroe    
LA  KYFL - 89.5 FM  Monroe    
LA  WBSN - 89.1 FM  New Orleans    
LA  WCKW - 1010 AM  Garyville   
LA  WLNO - 1060 AM  Gretna   
LA  WLNO - 1060 AM  New Orleans   
LA  WQCK - 92.7 FM  Baton Rouge    
LA  WSHO - 800 AM  New Orleans   
LA  WVOG -600 AM  New Orleans 

Note there are satellite translators that may relay broadcasts to
remote areas. Also Internet radio from other states may be listened
to.

Maybe you can call them up to find out how many subscribers each has.

Also see http://www.arbitron.com/radio_stations/home.htm (you can type
in call letters and get info like their website address) and
http://www.arbitron.com/downloads/redbk_fa02.pdf for potential
population in large towns in LA.  Arbitron.com does demographics of
radio stations.

The KAJN antenna is 1,600 feet high on the tower, allowing it to reach
nearly 2 million people in the Lake Charles, Alexandria, Lafayette and
Baton Rouge regions.