We are jewish and seriously considered sending our children to a catholic high school. They are highly rated and have a waiting list. They also have more than a few jewish parents who send their children and they are involved in the school process with the full support of the administration.
In the end, we moved to a new community and used the public schools for one and a private school for another.
Good luck......why not go into the school and speak to the principal.
Thanks so much for saying that. I have a friend on the other side of the city who is also considering a Catholic girls' school for her daughter, who already knows a lot of the girls from her Irish dancing. We thought we were the only Jews considering it!