What Borders Michigan? States, Provinces & Great Lakes

Michigan’s unique two-peninsula shape gives it a diverse set of neighbors—both political and aquatic.

U.S. States (Land & Water Borders)

• Wisconsin (west, across Lake Michigan)
• Illinois (southwest, Lake Michigan)
• Indiana (south)
• Ohio (southeast, Lake Erie)

Canadian Province

• Ontario (north & east, across St. Marys River, Lake Huron, St. Clair River, Lake St. Clair, Detroit River, Lake Erie)

Great Lakes (Four of Five)

• Lake Superior (Upper Peninsula north shore)
• Lake Michigan (entire west coast of Lower Peninsula)
• Lake Huron (Upper Peninsula east & northeast)
• Lake Erie (southeast corner)
• Lake St. Clair (connects Huron & Erie via Detroit/St. Clair Rivers)

Michigan has the longest freshwater coastline in the U.S. (3,288 mi) and more shoreline than any state except Alaska.