Nationwide, only 21 units are available per 100 extremely low-income renter households (those earning below 30 percent of the area median income) without government assistance. With assistance, it’s 46.
UI has also created a neat interactive map, which is an update from a previous version. It lets users explore the gap between the demand and supply of affordable units in every single U.S. county. (The National Low Income Housing Coalition released a similar report for states and metros this year, based 2015 one-year American Community Survey data. The UI report is based on 2010-2014 five-year estimates, which is better for a county-level analysis.) The UI map also lets users toggle the impact of assistance from the Department of Housing and Urban Development (HUD) and the Department of Agriculture (USDA).