Monroe Township is one of twenty townships in Allen County, Indiana, United States. At the 2010 census, the population was 1,927.
According to the United States Census Bureau, Monroe Township covers an area of , all land.
(This list is based on USGS data and may include former settlements.)
Four Presidents Corners, a monument, was built in 1917 where Monroe Township meets with Jackson, Madison, and Jefferson townships. All four townships are named after presidents.
The township contains these four cemeteries: Brown, Hoffman, Odd Fellows and Sugar Ridge.