Check out the article below about San Antonio being rated as one of the friendliest cities in America. I know these rankings lists can be a little silly but I think this one is close to the mark. I lived in San Antonio back in the early 90's for a while and I was surprised at how friendly the people were in San Antonio. Even though it is a large city it often feels more like living in a small city because of the people that live there. IMHO it's a great city to visit and to live in.
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"The United States is in no way founded upon the Christian religion." -- George Washington & John Adams in a diplomatic message to Malta