Any place in rural Texas, outside of the far south is a good answer. These rural Texan counties counties are voting 80-90%+ Republican every year in a absolute blowout. Texas would actually be a natural GOP vote pack if the state became more competitive because of all the wasted hyper GOP margins in the rural counties. These counties are like mini Chicago's, San Fran's and NYC's in terms of vote wasting for one side. The whites in these GOP rural counties must be voting Republican at a 80-90% or even larger margin. Texas Hispanics are more Conservative and Republican than Hispanics nationally as a whole. So rural Texas would have white's voting 80-90% Republican and Hispanics voting 60-70% range.
To some extent this is true, cause a lot of those Hispanics are also not Catholic, they're mostly Protestant.
However South Texas is a different story...