2. Centralia, Pennsylvania
Centralia is a borough and a near-ghost town in Columbia County, Pennsylvania, United States. Its population has dwindled from over 1,000 residents in 1981 to 10 in 2010, as a result of the Centralia mine fire that has been burning beneath the borough since 1962. Centralia is the least-populated municipality in Pennsylvania. In 1962, a fire started in a mine beneath the town and ultimately led to the town being almost entirely abandoned.
It has been stripped of a zip code, mail does not run, buildings and homes have been demolished and roads now lead off to nowhere. There are no stores, no schools… nothing. It is a ghost town with a few exceptions.