The US poverty rate is very misleading. It’s not the percent of people in poverty. It’s the percentage of people below a level of income at which not being impoverished is impossible.
“ The Census Bureau determines poverty status by using an official poverty measure (OPM) that compares pre-tax cash income against a threshold that is set at three times the cost of a minimum food diet in 1963 and adjusted for family size.”
Regarding my definition in the previous comment, I’m unable to find my original source. Sorry.