Collingdale is a borough in Delaware County, Pennsylvania, United States. The population was 8,786, at the 2010 census.
Felecia Coffee is the Mayor of Collingdale.
Frank Kelly served twelve consecutive four-year term as Mayor of Collingdale until his passing in November 2018. He served over 47 consecutive years as Mayor of Collingdale. This was the longest consecutive mayoral term in the history of Pennsylvania. The Borough Council appointed Joseph Ciavarelli to fill the vacancy in the office of Mayor after Kelly's death. Ciavarelli lost the 2019 mayoral election to the current mayor, Felecia Coffee.
Southern rock group 38 Special used the Collingdale Police force in making the video for their song "Back Where You Belong". In the video the Collingdale Chief of Police Robert Morris began the video with an homage to the TV show "Hill Street Blues".