Well then please feel free to refute any of what I said.
Here's a breakdown of median income by county: https://en.wikipedia.org/wiki/List_of_United_States_counties_by_per_capita_income
See how the lowest median incomes are mostly concentrated in the rural south with incomes increasing around the counties that have larger cities?
And here's data as of a few years ago again confirming higher rates of poverty in rural areas and greater job growth in metro areas:
Older study stating urban tax money subsidizes rural counties:
Another article with citations confirming more of the above: