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Welcome to Green Bay ...

The city of Green Bay is located in Brown County<1> and is the County Seat for Brown County.

While we don't have a date for the founding of Green Bay, you might consider that their post office opened in 1821.

From the  Census Estimates for 2019, Green Bay has a population of 104,296 people<2> (see below for details).

Green Bay is 580 feet [177 m] above sea level.<3>.

Time Zone: Green Bay lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Area Codes for Green Bay: 920 & 274<4>

The ZIP codes for Green Bay: 54229, 54301-54308, 54311, 54313, 54324, 54344<5>

Population Details ...

Taken from the 2019 Census Estimates, Green Bay had an population of 104,296 people. This is an increase of 0.23% since the 2010 Census (or an increase of 1.94% since the 2000 Census).

At the time of the 2010 Census, Green Bay had a population of 104,057 people (or 41.88% of the total population of Brown County). This makes Green Bay the county's most populous community.

The population of Green Bay represents 1.83% of the population of Wisconsin (which has 5,686,986 people), making it the state's 3rd most populous community.

With a 2010 count of 104,057 people, the population of Green Bay increased 1.7% from the 2000 Census (which had a count of 102,313 people).

More information can be found on the Census Page for Green Bay.

Communities Also Named Green Bay ...

Using our Gazetteer, we found that there are 14 communities that are also named Green Bay - they are located in Alabama, Florida, Illinois, Iowa (2), Manitoba, Nova Scotia, Ontario, Prince Edward Island, South Carolina (2), Vermont and Virginia (2).

For more information, see our Tidbits & Trivia Page for Green Bay.

Websites for Green Bay ...

Official Website: www.ci.green-bay.wi.us/

Communities near Green Bay ...

We have created a list of 10 communities that are near Green Bay.

  • Bellevue
    (6 miles [9.7 km] to the southeast)
  • Suamico
    (8 miles [12.9 km] to the north)
    • Suamico is located in Brown County
    • Jump to our Gazetteer entry for Suamico
    • Population from the 2020 Census: 13,064 people
  • Hobart
    (7 miles [11.3 km] to the west)
    • Hobart is located in Brown County
    • Jump to our Gazetteer entry for Hobart
    • Population from the 2020 Census: 10,495 people
  • Pulaski
    (15 miles [24.1 km] to the northwest)
  • Wrightstown
    (14 miles [22.5 km] to the southwest)
  • Seymour
    (15 miles [24.1 km] to the west)
    • Seymour is located in Outagamie County
    • Jump to our Gazetteer entry for Seymour
    • Population from the 2020 Census: 3,457 people
  • Luxemburg
    (15 miles [24.1 km] to the east)
    • Luxemburg is located in Kewaunee County
    • Jump to our Gazetteer entry for Luxemburg
    • Population from the 2020 Census: 2,577 people
  • Denmark
    (14 miles [22.5 km] to the southeast)
  • Casco
    (19 miles [30.6 km] to the east)
  • Maribel
    (19 miles [30.6 km] to the southeast)

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Green Bay. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Green Bay.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Green Bay. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Green Bay.

We also have a detailed list of newspapers that have been published in the area around Green Bay. Our list includes 45 papers. See our Newspapers Page for Green Bay.

Adding Green Bay to Our Gazetteer ...

We originally found mention of Green Bay in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found (so far) for Green Bay was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>

From that list, the Green Bay post office opened in 1821.

For more details, see References and Mentions for Green Bay.

Footnotes ...

<1>If you're interested in how the shape of Wisconsin's counties, including Brown, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Green Bay.
<3>The elevation is an estimate for the area around Green Bay - it will be higher in some places and lower in others.
<4>When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 920 code has been Overlayed with the 274 area code. New phone numbers in the Green Bay area will be assigned with one of these codes: 920 or 274. As a result, placing a call in the Green Bay area will require 10-digit dialing (where you enter both the area code and then the phone number).
<5>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Green Bay). When looking for a ZIP Code, whether Green Bay or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

Our list of ZIP Codes for Green Bay includes: 54229, 54301, 54302, 54303, 54304, 54305, 54306, 54307, 54311, 54313, 54324 & 54344.
<6>A copy of the Blevins & Helbock Post Office list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/