The U.S. is facing a housing shortage. That scarcity is most acutely felt in the country’s more densely populated metropolitan areas.

President Trump has proposed using some of the650 million acresof federal land to develop new housing.

Only some of thatfederal landfalls in U.S.metro areassurveyed by the National Association of Realtors for housing shortages.

Trump’s proposal could make a real impact in states such as Nevada, Utah, California and Arizona, where federal land is more abundant.

About7.3%of all federal land falls within metro areas that need more homes. The success of this policy then hinges on releasing federal land in the right places.