Baldur's Gate, also called simply the Gate, was a metropolis and city-state on the Sword Coast and Western Heartlands border, on the north bank of the River Chionthar about 20 miles east from its mouth on the Sea of Swords. It was located to the south of the great city-state of Waterdeep and to the north of the country of Amn, and was located along the well-traveled Coast Way road.
This wealthy port metropolis, whose population, according to many accounts, exceeded that of Waterdeep, was an important merchant city on the Sword Coast. Its strong watch and the presence of the powerful Flaming Fists mercenary company kept the city generally peaceful and safe.
City is about 1 mile across inside the walls of Upper City.