Do they actually exist anymore?
St. Ann’s in Washington, D.C. still exists. I don’t believe they specify that the girl/young woman is Catholic either. I think years and years ago, it was “assumed” the baby would be placed for adoption (times were different). However, not today. That is still available if the girl chooses that but keeping her safe, educated while pregnant etc... is the main goal.
I actually found a link that provides “maternity homes” state by state. (If I can post this correctly?) it is littlerose1999.blogspot.com/2007/03/homes-for-unwed-mothers. That is just one list that I found... seems like there are some in each state.