Learn About
The Commemorative
Quarter for
The Commemorative Quarter for Michigan

The 2000 Census showed that Bay County had a population of 110,157 people. This represented 1.11% of the total population of Michigan, making it the state's 18th most populous county (out of 83 counties).

From the Census Estimates for 2009<1>, Bay had a population of 107,434 people. This is a decrease of 2.47% since the 2000 Census.

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

Since 2000
Year-to-Year Change
2010107,771-2.17%+0.31% since 2009
2009107,434-2.47%-0.15% since 2008
2008107,597-2.32%+0.21% since 2007
2007107,373-2.53%-0.56% since 2006
2006107,973-1.98%-0.5% since 2005
2005108,513-1.49%-0.37% since 2004
2004108,921-1.12%-0.19% since 2003
2003109,125-0.94%-0.42% since 2002
2001109,654-0.46%-0.46% since 2000
2000110,157The Last Census

Bay County had 46,423 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Bay County has a total area<3> of 630 square miles [1,634 km²]. Of this total, 444.2 square miles [1,150 km²] of the area is land, with the balance (29.59%) being water (186.7 square miles [483.4 km²]).

Using the above population and land area values, Bay County had a population density of 248 people per square mile [95.7 people/km²], making it the state's 15th most densely populated county (out of 83 counties).

US Census QuickFacts

The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Bay County is available. The QuickFact also contains a comparison between Bay and the state of Michigan.

Click here for the Bay County QuickFact (QF-26017).

Below are some of the communities that are located in Bay County:

(2009 Est)
(2000 Census)
Change in
Bay CityQF-260602033,78036,817-8.25%

Below are the counties that adjoin and form the boundaries of Bay County. A link to their specific Census QuickFact has been provided.

(2009 Est.)
(2000 Census)
Change in
ArenacQF-26011   N16,09217,269-6.82%
GladwinQF-26051   NW25,72426,023-1.15%
MidlandQF-26111   W82,54882,874-0.39%
SaginawQF-26145   S200,050210,039-4.76%
TuscolaQF-26157   SE55,39558,266-4.93%

Saginaw Bay and Lake Huron lies to the northeast.

Other Roadside Stops ...

About Michigan

The Communities of Michigan

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Bay County

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

- Return to Citation

<2>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).

- Return to Citation

<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Bay. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

- Return to Citation

<4>All Quarter-dollar coin images from the United States Mint.

- Return to Citation