This is interesting, if you're curious:
The Association of Religion Data Archives | Maps & Reports
Has all the denominations throughout the area.
Some of the top ones (all rounded off):
Catholics 810,000
Non-Denominational 273,000
Southern Baptists 208,000
Methodists 197,000
Muslim estimate 134,000
Other interesting statistics:
Latter Day Saints (mormons) 63,000
African Methodists 43,000
Judaism (a few categories) 50,000
Click on the link for others...