This is the city of St. Canard. Like any other major metropolis, it has its problems with the criminal element.” ―Darkwing Duck narrating in the pilot episode
St. Canard is the city in which the animated series is set. It is the home of Darkwing Duck Darkwing Duck, his adopted daughter Gosalyn Mallard, and his neighbors, the Muddlefoots, which includes Honker Muddlefoot, Gosalyn's best friend. It is the second home to his goofy, dim-witted, trusty sidekick Launchpad McQuack. Various villains also live in this city.
comic book published by Darkwing Duck Boom! Studios, it is confirmed that St. Canard is located fairly close to Duckburg, where Launchpad previously lived.
reboot series, it is stated that Duckburg and St. Canard are across from each other separated by a bay. A fictional version of St. Canard is also the setting of the DuckTales Darkwing Duck TV series seen in the show.