Where was The Departed filmed

The Departed was filmed in Boston and in New York, United States of America.

Long Wharf

In movie

Scene where Captain Queenan and sergeant Dignam warn Irish mob boss Frank Costello that they are on to him.

Real

Boston

Irish Haven

In movie

Scene where Billy has to prove to Costello that he can be trusted.

Real

Scene was shot The bar in Brooklyn started in 1964. It was immortalized thanks to Martin Scorsese’s The Departed.
New York

Neponset River Trail

In movie

Scene where Queenan, Dingnam and Costigan having a heated discussion under the bridge.

Real

Scene was shot The Lower Neponset River Trail is a 2.4-mile-long (3.9 km) rail trail running along the Neponset River in the Dorchester section of Boston, Massachusetts. It roughly follows the path of the eastern part of the Dorchester and Milton Branch Railroad from the Port Norfolk neighborhood in Dorchester to the Central Avenue T Station in Milton, passing through Pope John Paul II Park, the Neponset Marshes, and the Lower Mills area. The Neponset River is a river in eastern Massachusetts in the United States. Its headwaters are at the Neponset Reservoir in Foxborough, near Gillette Stadium. From there, the Neponset meanders generally northeast for about 29 miles (47 km) to its mouth at Dorchester Bay between Quincy and the Dorchester section of Boston, near the painted gas tank. (source Wikipedia)
Boston