The
Kalamazoo River is a
river in the
U.S. state of
Michigan. The river is long from the junction of its North and South branches to its mouth at
Lake Michigan, with a total length extending to when one includes the South Branch. The river's
watershed drains an area of approximately and drains portions of eight counties in southwest Michigan:
Allegan,
Barry,
Eaton,
Van Buren,
Kalamazoo,
Calhoun,
Jackson,
Hillsdale,
Kent and
Ottawa. The river has a median flow of 1863 cubic feet per second (52.8 m³/s) at
New Richmond, upstream from its mouth at
Saugatuck.