Green Bay
- County:
- Brown County
- County Seat:
- Yes
- Area (mi²):
- 45.479
- State:
- Wisconsin
Green Bay is a city located in Brown County, Wisconsin. Green Bay has a 2026 population of 106,311. It is also the county seat of Brown County. Green Bay is currently growing at a rate of 0.1% annually but its population has decreased by -0.92% since the most recent census, which recorded a population of 107,299 in 2020.