Hispanic Evangelican Protestants were once a negligable part of the American population, but not anymore. Florida has a growing number of them.
The city of Allentown, PA, e.g., is 40% Hispanic and there are a number of evangelical/pentecostal Hispanic churches in the city. The Catholic presence is not that dominant here as the region was populated primarily by German immigrants who established Lutheran churches.
That style of worship, lots of music and very emotive, suits the culture of Hispanics very well.
I live in a largely Hispanic neighborhood. There are are several Hispanic-dominated Protestant churches within walking distance of my house.