Most people think all Hispanics in the US are Catholics. Broad generalizations are usually wrong. According to the most recent Simmons Experian 2010 data, only 62% of Hispanics prefer Catholicism. In fact, 12% has not religion preference. By country of origin, most secular Hispanics are found among Cuban-Americans (16%) and most Catholics among Mexican-Americans (67%).
Compared to the general population in the US, Hispanics are 2 ½ times more likely to be Catholics, so it is not surprising that Hispanics are considered Catholics by default.
A 2006 Religion Survey from the Pew Hispanic Center, showed back then that among Latino Christians – Catholics and Protestants – 39% described themselves as “born-again or Evangelical Christians.”