Disappearing cities and boroughs of the Keystone State; Ambridge, Pennsylvania

The New York Times, 11/9/2016

This former steel town west of Pittsburgh was for decades a Democratic stronghold, where Franklin D. Roosevelt’s Four Freedoms are proclaimed on a memorial in the small town park. But industrial decline and what is perceived as too fast cultural change in the country at large has transformed Ambridge and the rest of Beaver County around it, with the yards of faded brick homes presenting a river of Trump signs.

Source:  Wikipedia

Ambridge's population peaked at 20,227 in 1930.  Its 2016 estimated population is 6,787 -- a drop of 66%.

Like Aliquippa, the Borough of Ambridge is located in Beaver County, part of the western section of the Pittsburgh Metropolitan Statistical Area. The county's population peaked at 206,948 in 1960. Its 2017 estimated population is 165,140, a drop of 20%.   

Other disappearing cities and boroughs of the Keystone State

Aliquippa.  (1/12/2019)
Johnstown.  (1/6/2019)
Pittsburgh.  (1/13/2019)
Scranton.  (1/14/2019)

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)