Like many towns in the area, Arnold City has been home to many coal miners supporting the coal industry in the region.[5] The town supported housing for several nearby coal mines, including the Naomi Mine in Fayette City. Housing was constructed by the Hillman Coal and Coke Company, creating a Coal Patch Town,[6][7]
In addition to the Naomi mine, four additional mines operated in the area:[5]
Arnold No. 1 Mine, Arnold City, Fayette Co., PA
Arnold No. 2 Mine, Arnold City, Fayette Co., PA
Arnold No. 3 Mine, Arnold City, Fayette Co., PA
Hill Top Mine & Coke Works, near Arnold City, Washington Twp., Fayette Co., PA