Green Bay () is a city in the U.S. state of Wisconsin. The county seat of Brown County, it is at the head of Green Bay (known locally as "the bay of Green Bay"), a sub-basin of Lake Michigan, at the mouth of the Fox River. It is 581 feet (177 m) above sea level and 112 miles (180 km) north of Milwaukee. As of the U.S. Census Bureau's July 1, 2019 estimate, Green Bay had a population of 104,578, making it the third-largest in the state of Wisconsin, after Milwaukee and Madison, and the third-largest city on Lake Michigan's west shore, after Chicago and Milwaukee.
Green Bay is the principal city of the Green Bay Metropolitan Statistical Area, which covers Brown, Kewaunee, and Oconto counties. Green Bay is well-known for being home of the Green Bay Packers of the National Football League.
Samuel de Champlain, the founder of New France, commissioned Jean Nicolet to form a peaceful alliance with Native Americans in the western areas, whose unrest interfered with French fur trade, and to search for a shorter trade route to China through Canada. Nicolet and others had learned from other First Nations of the Ho-Chunk (Winnebago) people, who identified as "People of the Sea", and believed they must reside on or near the Pacific Ocean. Champlain had also heard about natural resources in the area, including fertile soil, forests, and animals. Nicolet began his journey for this new land shortly before winter in 1634. In what later became a French fur-trading route, he sailed up the Ottawa River, through Lake Nipissing and down the French River to Lake Huron, then through the straits of Michilimackinac into Lake Michigan.