I saw him just this past week in concert & twice he referred to himself as "a good Catholic boy." He has stated this in previous shows as well. No reason to doubt him. I know that he did,...
According to the link attached hereto, Paul Anka lived in Las Vegas as of Summer 2004.
http://www.sfgate.com/cgi-bin/article.cgi?file=/chronicle/archive/2005/10/23/REG4BF9UJ01.DTL&type=printable