Catholics historically have been stereotyped as having a bar-going culture, more so than Protestants. Here are some statistics from GSS2008:

Catholics Protestants

Mean Times Per Month Go to a Bar 1.56 1.18

Standard Deviation 4.02 3.35

Sample Size 301 681

So GSS2008 Catholics do go to bars more frequently than Protestants, but run a t-test and formally test the hypothesis to see if this is a significant difference.