Rental population booming in Washington, but affordability lags

Washington, D.C. was among five U.S. cities with more than 20 percent growth in rental population between 2006 and 2013, but many people living in these urban hubs are struggling to find affordable units, according to preliminary data from a study commissioned by Capital One Financial Corp.

The District and three other cities joined a list of metros where more than 50 percent of the population rents. Before 2006, renters were the majority in just five of America’s largest cities.

Rents outpaced…