And Arizona and New Mexico and West Virginia and many other areas in the Appalachians, etc........Sounds like Texass...In Texas I had a swamp cooler and two window units when it got over 95 degrees, my parents house in Colorado just had a swamp cooler until my dad installed air conditioning a year before he died. The house here in Albuquerque has central air and heat. Lots of people specifically in rural areas have no air conditioning at all and many still use wood or coal to heat their homes.I don't have A/C, so it's a moot question
I thought everyone in America had air conditioning and also basements, although someone told me that in some American States they don't have basements, but I can't remember which States they are.
Oh and I haven't lived in a house with a basement for over three years, lots of houses out here have no basements and probably a quarter of all houses out here are "mobile" or manufactured homes, most have no basement. There are even areas where there is no plumbing in the house or the waste lines run directly into a creek.