So the number of Catholics in America is about 65,000,000?
There are those who said that John Kerry "pretended" to be "Catholic" and was "secretly" Jewish to court both of these groups in the 2004 election.
There are about 1 billion Catholics worldwide. Countries like the Philippines, Latin America, etc. swell the number of Catholics worldwide.
The other Christian groups (Baptists, Methodists, Anglicans, etc) keep splintering. I believe there are about 60,000 different "other Christian denominations" in the US.