(Undated) -- Iowa's two largest cities continue to have some of the most affordable housing in the U.S. WalletHub says Cedar Rapids and Des Moines rank 1st and 2nd among the country's 182 largest cities for affordable housing. That statistic is part of a larger report ranking cities on their stress. WalletHub says Des Moines is the 115th-most stressed city in the U.S. and Cedar Rapids is 155th. A full list of cities is available here.