McDonald's Corporation is headquartered in Chicago, Illinois.
McDonald's moved its global headquarters from Oak Brook to Chicago in 2018. The company established its new headquarters in the West Loop area, a move that brought its corporate offices closer to the city's restaurant, business, and cultural districts.
The relocation ended a long association with Oak Brook, a suburban village west of Chicago. McDonald's had been based there for decades, and the company's former headquarters became so well known that many references still incorrectly identify Oak Brook as the current location.
McDonald's corporate headquarters should also be distinguished from the company's historical origins. The first McDonald's restaurant opened in San Bernardino, California, in 1940, while Ray Kroc's business expansion eventually made the chain a global corporation headquartered in Chicago.