Throop /ˈtruːp/ is a borough in Lackawanna County, Pennsylvania, United States, adjoining Scranton.

Formerly, coal mining and silk manufacturing provided employment for the people of Throop, who numbered 2,204 in 1900 and 5,133 in 1910.

[4] According to the United States Census Bureau, the borough has a total area of 5.0 square miles (13 km2), all land.

It is bordered to the northeast by Olyphant, to the north by Blakely, to the northwest by Dickson City, to the west by Scranton, and to the south by Dunmore.

Now owned by Gould Electronics, the empty land was a former battery processing facility closed in April 1982.

Since the late 1980s, the federal United States Environmental Protection Agency and the state DEP have worked to clean up contamination in adjacent areas, but a final remedy for the site itself has remained on hold in recent years, as local officials and citizens fight with the government agencies and Gould over the best solution.

The Flop serves as a fundraiser for the club and usually raises about $10,000 annually to benefit youth baseball and softball programs in the borough.

The Flop, formerly held on a Sunday in late June, is now a two-day (since 2007) event that features a parade, fireworks, music, food, and other entertainment.

The event requires more than 100 volunteers, mostly members of the Booster Club and parents of Throop athletes, to produce.