Cedar Creek (from Potawatomi: mskwawak-zibə) is the largest tributary of the St. Joseph River, draining 174,780 acres (707.3 km2) in the Eastern Corn Belt Plains of northeastern Indiana. It is 31.9 miles (51.3 km) long, rising in northwestern DeKalb County and joining the St. Joseph just below the Cedarville Dam in Allen County.