Mustang Horses for Sale near Morris Plains, NJ

About Morris Plains, NJ

For other places with similar names, see Morristown, New Jersey (disambiguation). Morris Plains is a borough in Morris County, New Jersey, United States. As of the 2010 United States Census, the borough's population was 5,532, reflecting an increase of 296 (+5.7%) from the 5,236 counted in the 2000 Census, which had in turn increased by 17 (+0.3%) from the 5,219 counted in the 1990 Census. Morris Plains was incorporated as a borough by an act of the New Jersey Legislature on March 15, 1926, from portions of Hanover Township, based on the results of a referendum held on April 15, 1926. The borough's name comes from Lewis Morris, colonial governor of New Jersey.