If any Poles say otherwise, feel free to correct me, but my impression of Poland's religiosity is largely dependent on the strong role of the Catholic Church in recent historical affairs (Pope John Paul II, keeping Polish culture alive during USSR era, etc.) and less on the population being more "religious".

I don't think the majority of Poles are actively "Catholic" in their religious metaphysical beliefs, but rather they all belong to the church because of its cultural importance. I could be wrong, however, as I don't live there.

It makes me wonder about other countries where the church plays an important cultural role (Italy, for example.)