That is not even close. Maybe "household" as in more than one person. Recheck your census, and employment numbers toots. As for how much that depends. I was managing on 24-30k a year when I first started doing online full time (was part time for years before then). I live in SW Michigan, and rent. Single, no kids, no wife. That said, obviously there are a lot of variable that go into the equation... rent vs mortgage. Car owned, versus lease, payment. Kids, family, credit and other debit, student loans, and so on. Plus WHERE you live in the U.S.. New York, Cali, and some other places you need a lot more green then middle America. Plus, how much much of your money goes back into your business.
dont bother moving here unless you make 1mill/yr+ hah... houses and taxes make life expensive in the US