Brownsville, Texas, I just looked at a service a few days ago at a house to which my g/f moved into with her family. 100A Cutler Hammer main with a 100A circuit breaker (feeding a subpanel), a 40A circuit breaker (this one feeding a 50A SQ D subpanel for a range, added later), and a 60A circuit breaker. Needless to say, there's 4 big bedrooms, a big living room, big dining room, LOTS of receptacles, LOTS of lighting, lots of electrical consumption. And oh yeah, central A/C.