Considering The births to unmarried women rate is highest in the Bible Belt as well as the divorce rate, I think it's clear which group has the most trouble keeping it in their pants
The holes in your logic are big enough to drive an 18-wheeler through -- you aren't taking into account abortion, birth control, and cohabitation, all of which would likely be higher in non-religious areas of the country. So your statistics go nowhere in proving that the religious are hornier than your average atheist.