Mercury is a town in Nye County, Nevada, USA, 5 miles north of U.S. Route 95 at a point 65 miles further northwest of Las Vegas. It is situated within the Nevada Test Site and was constructed by the Atomic Energy Commission to house and service the staff of the test site. Today, the site is governed by the United States Department of Energy. As part of the test site, the town is not accessible by the general public. It was named for the mercury mines which flourished in its general vicinity a century before the town itself was established. The current population is unknown.