Monroe Manor is a census-designated place (CDP) in Monroe Township, Middlesex County, New Jersey, United States. As of the 2020 census, the first time it was listed as a CDP, it had a population of 2,178.
Monroe Manor first appeared as a census designated place in the 2020 U.S. census.
The community is in the southernmost part of Middlesex County and consists of the developments of Monroe Manor and Monroe Place. It is bordered to the south by Millstone Township in Monmouth County and to the west by the Renaissance at Monroe development. New Jersey Route 33 forms the northern border of the CDP, leading west to Hightstown and east to Freehold.