The town of Cardin, Oklahoma is located within the Tar Creed Superfund site causing toxic areas and therefore reducing the population to what number in November 2010?
Cardin, Oklahoma: Cardin is a ghost town in Ottawa County, Oklahoma, United States. Cardin, Oklahoma:  The town is located within the Tar Creek Superfund site; the vast majority of its residents accepted federal buyout offers, and the town's population dropped to zero in November 2010. Tar Creek Superfund site: Tar Creek Superfund site is a United States Superfund site, declared 1983, located in the cities of Picher and Cardin, Northeastern Oklahoma.
zero