Like many communities in the area, Arnold used to be a factory town, home to Alcoa, American Window Glass and General Electric. Vibrant grocery stores and bars occupied every main corner in the mid-20th century, said Jim Thomas, Allegheny-Kiski Valley Historical Society board president
But the industries and jobs began leaving in the 1960s and ’70s. Arnold’s economy was hit particularly hard because of its lack of access to Route 28 on the other side of the river, suggested Arnold Police Chief Eric Doutt, a lifelong resident.
The town now has the lowest median household income ($25,599) and highest poverty rate (36.3 percent) in Westmoreland County, according to the 2016 American Community Survey five-year estimates.
Arnold's population peaked at 10,898 in 1940. Its 2016 estimated population is 4,939 -- a drop of 55%.
Other disappearing cities and boroughs of the Keystone StateAliquippa. (1/12/2019)
Other U.S. disappearing cities:
Baltimore, Maryland. (12/31/2018)
Benton Harbor, Michigan. (1/15/2019)
Buffalo, New York, (1/8/2019)
Cairo, Illinois. (1/5/2019)
Cleveland, Ohio (1/2/2019)
Detroit, Michigan. (1/1/2019)
East St. Louis, Illinois. (1/11/2019)
Flint, Michigan. (1/7/2019)
Gary, Indiana. (1/4/2019)
St. Louis, Missouri. (1/2/2019)
Wheeling, West Virginia. (1/16/2019)
Youngstown, Ohio. (1/9/2019)