Oradell was originally formed on March 8, 1894, as the borough of Delford, from portions of Harrington Township, Midland Township (now Rochelle Park) and Palisades Township.[21] 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.[22] The name “Delford” was a portmanteau created from the names of two communities within the new borough: Oradell and New Milford.[23] The Hotel Delford had been constructed in 1870 after the construction of the first railroad to reach the area.[24] On November 12, 1920, the borough’s name was officially changed to “Oradell”, based on the results of a referendum held ten days earlier.[21][25] Oradell derives its name from “ora” (Latin for “edge”) and “dell”.[26]

Bedminster was settled in 1710 by Dutch, Germans, and Scots-Irish immigrants. It was named after Bedminster, then in Somerset, England, and now a district of Bristol.[20][21] Bedminster Township was created by Royal charter on April 4, 1749, from portions of the Northern precinct. It was incorporated formally by an act of the New Jersey Legislature on February 21, 1798. Portions of the township were taken on March 28, 1912, to form Peapack-Gladstone.[22]

Runnemede was incorporated as a borough by an act of the New Jersey Legislature on March 23, 1926, from portions of the now-defunct Centre Township, based on the results of a referendum held on April 24, 1926. The boroughs of Bellmawr, Mount Ephraim, and Lawnside were simultaneously created during the same two-day period.[21] The derivation of the borough’s name is uncertain, though claims that it derives from a Native American term for “running water” have been refuted and connections to General George Meade or to “rum we need” for a nearby tavern are probably apocryphal.[22] Sources have cited the name as coming from Runnymede, England.[23]

Upper Saddle River had a per capita income of $73,639 and was ranked 20th in New Jersey based on data from the 2006–2010 American Community Survey (ACS) from the United States Census Bureau, more than double the statewide average of $34,858.[20] In the 2013–2017 ACS, Upper Saddle River had a median household income of $176,674 (ranked 8th in the state) and included 42.9% of households earning more than $200,000 annually.[21]

Newton was incorporated by an act of the New Jersey Legislature on April 11, 1864, from portions of Newton Township, which was also partitioned to create Andover Township and Hampton Township, and was then dissolved. Additional land was acquired from Andover Township in 1869 and 1927, and from Fredon Township in 1920.[19]

Kenilworth was incorporated as a borough by an act of the New Jersey Legislature on May 13, 1907, from portions of Cranford and Union Township, based on the results of a referendum held on June 18, 1907.[20]

Northfield was incorporated as a city by an act of the New Jersey Legislature on March 21, 1905, from portions of Egg Harbor Township.[21] A portion of Egg Harbor Township was transferred to Northfield in 1931, and then reverted to Egg Harbor Township in 1933.[22]

Montvale was incorporated as a borough on August 31, 1894, from portions of Orvil Township and Washington Township.[20] 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.[21] On February 15, 1896, Montvale acquired part of Orvil Township. In 1906, Montvale added further land from Orvil and Washington townships, and in 1912, Montvale added territory from Upper Saddle River.[20] On May 20, 1959, portions of Montvale were passed to River Vale, and on December 9 and 14, 1965, territories were exchanged between Montvale and Upper Saddle River.[22] The borough’s name is derived from its topography.[23]

Prior to being called West Long Branch, the area had been called Mechanicsville from the 18th century through the Civil War, and then Branchburg in the 1870s. The name West Long Branch appears in the 1889 Wolverton Atlas of Monmouth County, and seems to have derived its name from its proximity to a section of the Shrewsbury River.[21]

The Lenni Lenape Native Americans tilled the soil, hunted in the woods, and fished in the rivers and streams before the Dutch arrived in the early 18th Century. The Dutch settlers, though, left an indelible mark on the area. Early records show that after the English takeover of New Netherland, English Governor Philip Carteret in 1669 granted a real estate speculator named Balthaser De Hart a strip of property which extended east and west from the Hudson River to the Tiena Kill, and north and south from today’s Cresskill into Palisades, New York.[22] It is within these geographical boundaries that lies what is now known as Closter. The first land grant deed for the area today known as Closter was not written until April 13, 1671.[23] The northern half of this tract of land consisting of 1,030 acres (420 ha) (extending from what is Closter Dock Road northward) was purchased by Barent and Resolvert Nagel on April 25, 1710,[24][25] who along with the Vervalen family first settled what is now Closter.