According to the
United States Census Bureau, Warren Township covers an area of ; of this, (97.45 percent) is land and (2.55 percent) is water.
Cities, towns, villages •
South Bend (partial)
Unincorporated towns •
Chain-O-Lakes at •
Crumstown at •
Lydick at (This list is based on USGS data and may include former settlements.)
Adjacent townships •
Bertrand Township, Berrien County, Michigan (north) •
German Township (northeast) •
Portage Township (east) •
Greene Township (south) •
Olive Township (west)
Major highways • • • • •
Airports and landing strips • Chain-O-Lakes Airport
Lakes • Bass Lake • Chamberlain Lake • Mud Lake • South Clear Lake • Szmanda Lake ==School districts==