The Urban Institute has a tidy synopsis of the rental-affordability crisis that we keep referring to, complete with an interactive national map with data at the county level. Key points in the narrative: the rental population is increasing, the availability of affordable units for poor people is declining, and the responsibility of the federal government to do something about remains paramount. (We might add that the penchant of national leaders is in decline.)

Nationwide, in 2013, there were just 28 affordable living units per 100 renter households of extremely low income, down from 37 in 2000. Here’s the national map:

The darker counties have more units per low-income population. (Jones and Wayne counties in Mississippi are at or near the top, at 71. Click here for the interactive map.)

Vermont does a little better than the national average. Here’s the Northeast map, with Lamoille County highlighted:

The figures for Vermont counties:

Caledonia, Lamoille, Orleans, Washington: 29 affordable units per 100 extremely low-income households.

Grand Isle: 32.

Chittenden, Franklin: 35.

Addison, Bennington, Rutland: 47.

Orange, Windham, Windsor: 49.

Those numbers may look impressive compared to some other states, but don’t forget that a majority of the extremely low income population is still out in the cold.