In the 2010 census, its population was 8,786 and it contained 4,098 housing units.

It was named for President James Monroe.

[2] (This list is based on USGS data and may include former settlements.)

The township contains these six cemeteries: Bell, Donahue, Parkview, Pisgah, Star and Walker.

Monroe Township residents may obtain a free library card from the Alexandria-Monroe Public Library in Alexandria.