the cities and rural areas
I understand that. The question was rhetorical. What is implied is that more poor people live in rural areas than in either the cities or the suburbs, which I find surprising.
Not at all, as they are likely using a national poverty level based on income, and skewed towards the cost of living in a suburban or urban area.
Thus those making 50k in an urban area would be considered in poverty and their reality would be poverty. And those living in a rural area would be considered living in poverty, but their reality would not be poverty.
Cities are expensive.
What is implied is that more poor people live in rural areas than in either the cities or the suburbs, which I find surprising.
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Go exploring through Appalachia or rural Mississippi or hundreds of Indian reservations.