The Gas House Gang was a New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 street gang during the late nineteenth century.

Founded in the 1890s, the Gas House Gang was based in the Gas House district of Manhattan

Manhattan

Manhattan is the oldest and the most densely populated of the five boroughs of New York City. Located primarily on the island of Manhattan at the mouth of the Hudson River, the boundaries of the borough are identical to those of New York County, an original county of the state of New York...

 and controlled the area along Third Avenue from 11th to 18th Street. Specializing in armed robbery, the gang was estimated to have committed between 30 to 40 robberies a night as well as extorting money from local residents and operating brothels. The gang would continue to control the district for over two decades until it was eventually absorbed by the Five Points Gang

Five Points Gang

Five Points Gang was a 19th-century and early 20th-century criminal organization, primarily of Italian-American origins, based in the Sixth Ward of Manhattan, New York City. Since the early 19th century, the area was first known for gangs of Irish immigrants...

in 1910.