Boston, MA Boston, MA Boston, MA Boston, MA Boston, MA 45% of Boston is Catholic Boston, MA Boston, MA Explore Boston demographics.Demographics 45% of Boston is Catholic "Boston, Massachusetts" "Boston, Massachusetts" 45% of Boston is Catholic Boston, Massachusetts (MA) profile: population, maps, real. Boston, MA median resident age is 31.7 Boston Boston, MA Boston city-Data Boston, MA Boston, MA Boston, MA Boston Boston, MA Boston Boston, MA Boston, MA Boston, MA Boston, MA Boston, MA Boston, MA http://www.city-data.com/city/Boston-Massachusetts.html Boston, Massachusetts Boston Boston, MA Boston, MA