Sarah Palin didn’t leave Catholicism, her parents did and of course they took their kids with them. I think Palin was 6 or 7 years old when the old man quit going to Mass and found a Pentacostal or Assemblies of God church to start attending. Sarah Palin was baptised in Christ the King Catholic Church in Pasco, Washington and still has an aunt that lives there, who is still a Catholic. Palin comes and visits every so often and it’s always a big deal in the little town of Pasco.
Palin left the Catholic denomination and has never returned.
Governor Palin is a non-denominational Christian, and a deliberate, non-Catholic.