Today, the western Upper Peninsula is home to about 173,887 people, while the eastern Upper Peninsula is home to about 133,499 people, a total of 307,386—only about 3% of the state's population—living in almost one-third of the state's land area.
Residents are known as Yoopers (from "UP-ers"), and many consider themselves Yoopers before they consider themselves Michiganders. (
People living in the Lower Peninsula are commonly called "trolls" by Upper Peninsula residents, as they live "Under the Bridge".)
This regionalism is not only a result of the physical separation of the two peninsulas, but also the history of the state.

Residents of the western Upper Peninsula take on some of the cultural identities of both Wisconsin and Michigan.
In terms of sports fandom, residents may support Detroit professional teams or those of Wisconsin—particularly the Green Bay Packers.
This is a result of both proximity and the broadcast and print media of the area.
The four counties that border Wisconsin are also in the Central Time Zone, unlike the rest of Michigan, which is on Eastern time.
 In some cases, commercial cartographers draw incorrect maps that inadvertently annex the Upper Peninsula into Wisconsin.
Today, the western Upper Peninsula is home to about 173,887 people, while the eastern Upper Peninsula is home to about 133,499 people, a total of 307,386—only about 3% of the state's population—living in almost one-third of the state's land area. Residents are known as Yoopers (from "UP-ers"), and many consider themselves Yoopers before they consider themselves Michiganders. (People living in the Lower Peninsula are commonly called "trolls" by Upper Peninsula residents, as they live "Under the Bridge".) This regionalism is not only a result of the physical separation of the two peninsulas, but also the history of the state.
Residents of the western Upper Peninsula take on some of the cultural identities of both Wisconsin and Michigan. In terms of sports fandom, residents may support Detroit professional teams or those of Wisconsin—particularly the Green Bay Packers. This is a result of both proximity and the broadcast and print media of the area. The four counties that border Wisconsin are also in the Central Time Zone, unlike the rest of Michigan, which is on Eastern time.  In some cases, commercial cartographers draw incorrect maps that inadvertently annex the Upper Peninsula into Wisconsin.
Upper Peninsula of Michigan