East Brunswick was incorporated as a township by an act of the New Jersey Legislature on February 28, 1860, from portions of both Monroe Township and North Brunswick Township. Portions of the township were taken to form Washington town within the township (February 23, 1870; became independent as South River on February 28, 1898), Helmetta (March 20, 1888), Milltown (January 29, 1889) and Spotswood (April 15, 1908).[24]
^Raritan River Basin, Sierra Club, New Jersey Chapter - Raritan Valley Group. Accessed September 16, 2017. "The Raritan River proper forms at the confluence of the North Branch and the South Branch just west of Somerville. It flows 16 miles before slowing in tidewater at New Brunswick."
^[1], Distance between cities. Accessed May 3, 2022.
^Sweilem, Amira. "N.J.’s population center still tilts north. This town considers it a badge of honor.", NJ Advance Media for NJ.com, November 27, 2022. Accessed January 20, 2024. "Answer time: East Brunswick has held the statistical center of population title since the 2010 Census.... The U.S. Census runs the calculation every 10 years and it has wobbled around Middlesex County since 1880, straying just once since that time into Somerset County (Warren Township) in 1890. East Brunswick just barely held onto the population center in the 2020 Census calculations.... The new spot is on Hawk Court just off Milltown Road between the NJ Turnpike and Ryders Lane."
^Stirling, Stephen. "U.S. Census shows East Brunswick as statistical center of N.J.", The Star-Ledger, March 31, 2011. Accessed July 14, 2011. "For any of you who have ever lain awake at night asking: Where, oh where is the statistical center of New Jersey, there really is an answer. Nenninger Lane, East Brunswick. A few hundred feet into the woods along tiny Nenninger, a dead-end road beside the New Jersey Turnpike, sits the heart of the Garden State in terms of population, according to the U.S. Census Bureau."
^"East Brunswick, N.J., Represents State's Population Center.", The Star-Ledger, March 27, 2001. Accessed September 17, 2007. "And the center of New Jersey, according to 2000 census data, is a litter-strewn patch of woods on Milltown Road in East Brunswick. Demographers call it the center of population, the place that would require the least amount of travel if all the state's 8.4 million residents were to converge on one spot.