Green Bay is the county seat of Brown County in the U.S. state of Wisconsin. The city is located at the head of the Bay of Green Bay and the mouth of the Fox River, at an altitude of 581 feet (177 m). It is 112 miles (180 km) north of Milwaukee. According to the 2004 census estimate, Green Bay has a population of 102,313. The Town of Green Bay is located several miles northeast of the city.

Green Bay is the third largest city in Wisconsin. It is set at the southern end of Green Bay and is divided by the Fox River. Green Bay is an industrial city with several meatpacking and paper plants. Downtown Green Bay is the area surrounded by Walnut, Monroe, and Main Avenues. The Fox River acts as a natural border for the downtown. Downtown Green Bay has a number of mid-rise buildings and the now defunct Port Plaza Mall. Lambeau Field is located in the southeastern part of the city on Lombardi Avenue. South of downtown on Monroe Avenue lays the South Village Historical District. The neighborhood is contains large old homes and tree lined streets. The district is located south of Mason Avenue on Monroe.