 The community was originally incorporated as the borough of Riverside by an act of the New Jersey Legislature on June 30, 1894, from portions of Midland Township, based on the results of a referendum held the previous day.On December 1, 1930, the borough's name was changed to River Edge.The borough was formed during the "Boroughitis" phenomenon then sweeping through Bergen County, in which 26 boroughs were formed in the county in 1894 alone.