Teen birth rates are highest in the most religious states

[Brittain33]

and it also covers up the fact of the high percentage of minorities in the more religious states.  It's like making a comparison with Texas average SAT scores when a good chunk of the Texas population doesn't even speak English.

Instead of  teen birth rates, I would like to know teen pregnancy rates and see a breakdown among religious whites and nonreligious whites of the same income level.

This isn't exactly what you're asking for, but it's pretty close. Janet is a friend of mine from college who is an observant Jew.

http://www.reuters.com/article/healthNews/idUSTRE5075NT20090108

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I suppose this conversation could go down a "No True Scotsman" path where we define those people who get pregnant as not really religious, because it they were taking their faith to heart, they wouldn't have messed around.

That might be useful, because it would bring you closer to people who would argue this statistic is significant and relevant to politics.

[Brittain33]

and it also covers up the fact of the high percentage of minorities in the more religious states. 

Very uneven. Clearly there's some correlation with Latino numbers, but you can't tell me that Arkansas and Oklahoma are so high, or even Kentucky or Tennessee, based on minorities. Look at how low down the list the diverse state of New York is by contrast. Not to mention California, which is much lower than Texas with comparable demographics.