Monroe Township is a township located in southern Middlesex County, in the U.S. state of New Jersey. The township is centrally located within the Raritan Valley region and is an outer-ring suburb of New York City within the New York metropolitan area.Smothers, Ronald."Monroe Township Journal; By the Road an Old Oak Stands. That's the Rub.", The New York Times, March 16, 2003. Accessed July 9, 2023.Cheslow, Jerry. "If You're Thinking of Living in/Monroe Township; Split by Phone and Mail, but Not in Spirit", The New York Times, October 31, 1993. Accessed July 2, 2023.New York-Newark, NY-NJ-CT-PA Combined Statistical Area, United States Census Bureau. Accessed March 29, 2018. As of the 2020 United States census, the township's population was 48,594, its highest decennial count ever and an increase of 9,462 (+24.2%) from the 39,132 recorded at the 2010 census, which in turn reflected an increase of 11,133 (+39.8%) from the 27,999 counted in the 2000 census.Table 7. Population for the Counties and Municipalities in New Jersey: 1990, 2000 and 2010, New Jersey Department of Labor and Workforce Development, February 2011. Accessed May 1, 2023. Monroe Township also comprises the largest land area of any municipality in Middlesex County, at approximately .
Monroe Township was incorporated as a township by an act of the New Jersey Legislature on April 9, 1838, from portions of South Amboy Township, based on the results of a referendum held that same day. Portions of the township were taken to form East Brunswick (February 28, 1860), Cranbury (March 7, 1872), and Jamesburg (March 19, 1887).Snyder, John P. The Story of New Jersey's Civil Boundaries: 1606–1968, Bureau of Geology and Topography; Trenton, New Jersey; 1969. p. 171. Accessed May 30, 2024.
There are several age-restricted communities in Monroe Township.Home Page, Clearbrook website.Home Page, Concordia website.Home Page , Rossmoor website.Home Page, Greenbriar at Whittingham. Despite significant senior citizen population growth, the median age in Monroe has changed from 52.5 in 1990, increasing to 58.9 in 2000, before decreasing to 53.2 in 2010, as more growth recently has resulted from single-family detached homes than from senior citizen developments. Based upon analysis of data from the FBI's Uniform Crime Reports for 2022 and 2023, Monroe Township was ranked as the safest small city in the United States.
History The earliest settlers in what would become Monroe Township were the Lenape Native Americans. Monroe Township was founded in April 1838 and named in honor of the fifth President of the United States, James Monroe.Hutchinson, Viola L. The Origin of New Jersey Place Names, New Jersey Public Library Commission, May 1945. Accessed September 7, 2015.
For many decades, the township area was largely a farming community. After parts of the township grew into the more densely populated neighborhoods of Helmetta, Jamesburg, and Spotswood in the late 19th century, they seceded. Railroads came into Monroe from just about the very beginning, starting with the Camden and Amboy Rail Road in the 1830s and 1840s.Carpello, Sandy. "Buggy rides take residents on trip through old J'burg", Sentinel, December 26, 2002. Accessed December 7, 2019. "Buckelew was the driving force in the establishment of the Camden and Amboy Railroad in 1831, and the establishment of the Jamesburg & Freehold Agricultural Railroad in 1853."
In 1905, Bernarr Macfadden, the proponent of physical culture, came to the part of Monroe near Helmetta and Spotswood, and attempted to set up a camp called "Physical Culture City", where he could teach his beliefs in relative peace. However, in 1907, Macfadden was arrested for distribution of pornography and the camp dissolved."History of Spotswood" , copy of article from Home News Tribune, January 20, 2000, from Borough of Spotswood. Accessed August 6, 2013. "1913: Spotswood becomes a summer vacation spot with the opening of a health camp on Spotswood Lake -- now known as DeVoe. A few years earlier, a publisher named Bernarr Macfadden had established a Physical Culture City along Daniel Road, on the border of Spotswood and Monroe." The area of this camp became the Outcalt neighborhood.
The New Jersey State Home for Boys, later known as the Training School for Boys, and now the New Jersey Training School for Boys, was established near Jamesburg. It was opened in 1867 as a home for troubled youth; however, by the mid-20th century, its purpose was to rehabilitate juvenile delinquents.New Jersey Training School, New Jersey Attorney General, Juvenile Justice Commission. Accessed August 6, 2013. "The New Jersey Training School (NJTS) is the Juvenile Justice Commission's largest facility currently housing approximately 200 male juveniles." One of the better known residents of the State Home was Rubin "Hurricane" Carter.Raab, Selwyn. "Rubin (Hurricane) Carter, Boxer Found Wrongly Convicted, Dies at 76", The New York Times, April 20, 2014. Accessed December 7, 2019. "At 11, after stabbing a man, he was sent to the Jamesburg State Home for Boys (now called the New Jersey Training School for Boys)." Clarence Clemons of Bruce Springsteen and the E Street Band was a counselor there for many years during the 1960s before he found fame as a saxophone player with Springsteen.Jordan, Chris. "Big Man Bash: The Legacy of Clarence Clemons Day", Asbury Park Press, January 5, 2017. Accessed December 7, 2019. "Clemons had a history of helping young people. He and his wife Jacqueline Clemons were counselors at the then-called Jamesburg State Home for Boys before he became a music star, and later in his life he was a strong supporter of Little Kids Rock, which strives to bring music education to underserved kids."
The township became more suburban between 1960 and 1968, when the New Jersey Turnpike opened up Exit 8A in the western part of Monroe, in conjunction with the effort to develop the Leisure World age-restricted community of Rossmoor. Since then, at least five more communities for senior citizens have joined Rossmoor: Concordia, Clearbrook, Greenbriar at Whittingham, The Ponds, Encore, Stonebridge, and the Regency at Monroe, with more under development. At the same time, and over the next few decades, suburban communities for people of all ages spread into the northern parts of Monroe Township, prompting the expansion of several schools and the construction of new ones. Since 1980, in addition to the age restricted communities, Monroe has added shopping centers, synagogues, a large Hindu mandir, a recreation center, and a new library.
Circa 1980, it was found that a landfill which was located at the corner of what is now Spotswood Gravel Hill Road and Carnegie Street, contaminated the ground water which forced Outcalt residents to get municipal-supplied water. The site had been run as a landfill for municipal waste since 1955, first by the township and later by an independent operator.Monroe Township Landfill, Monroe Township, New Jersey, United States Environmental Protection Agency. Accessed December 7, 2019. "The Monroe Township Landfill is located in Middlesex County, New Jersey. The landfill operated on an 86-acre area from 1955 to 1978. Monroe Township was the original owner and operator of the landfill and continues to own the site property. The Township operated the landfill from the mid-1950s until 1968, when it was leased to Princeton Disposal Service for operation under the service contract to Monroe Township."
On March 22, 2006, ten residents of Monroe Township, from The Ponds retirement community, were killed in a tour bus accident in the Andes mountains in northern Chile.Silent embraces, kisses mark memorial, Home News Tribune, March 24, 2006. The tour had been arranged by Jewish organization B'nai B'rith.
Since the early 2000s, Monroe has experienced a surge in residential development. New communities are being erected, usually around Route 33 and the New Jersey Turnpike. Portions of Monroe's farmland are receiving commercial zoning. Roads have been widened to allow for the extra vehicular volume. Warehouses are being/have been constructed in the last few years along CR 535, located near the 8A toll gate. The northern section of the township is already developed, with developers heading further south in Monroe to start new communities. New adult communities have set ground in central Monroe, along Route 33 and on CR 615. While these new senior citizen housing units are being built, luxury homes are also being constructed.
There is an ongoing expansion of the Monroe Township High School that is relocating it onto portions of Thompson Park. This project slowly received approval after an archaeological study concluded that the land was not historically significant, except about of land. The controversy that led to the study involved a Lenape settlement, Bethel Indian Town, which protesters contended existed on the site, whereas supporters of the move of the high school claimed that Bethel Indian Town was a half-mile away. In late April 2008, construction started on the new high school, which then opened in September 2011. The old high school building is now being reused as the middle school. By early 2008, the State Preservation Office and New Jersey Department of Environmental Protection approved the de-accession of the land as a protected park. Ground breaking began immediately, only to be halted in June 2008 when additional remains were found. The consultant identified these stone foundation remains as a 19th-century farmstead, with no earlier association.Bethel Indian Town, Richard S. Walling, February 2009.
The township's Route 33 Land Development Task Force is considering options for developing the area of land along Route 33 from the township's border with East Windsor to Millstone Township.
This proposal would include the construction of new luxury houses, a new grocery store, a baseball park, a performing arts center, a bus stop, new restaurants, and new businesses.Mandel, Seth. "Monroe moving ahead on Rt. 33 development; Officials believe baseball stadium is still a viable plan along state highway", News Transcript, July 27, 2005. Accessed June 11, 2015. "The Route 33 Land Development Task Force, assembled by Mayor Richard Pucci and headed by township Environmental Protection Manager Joe Montanti, has been looking into future development possibilities along the state corridor in light of the idea that a ballpark will be built there."
In May 2021, Monroe Township coordinated a financial relief effort toward the COVID-19 pandemic in India.
The former Holmes–Tallman House is listed on both the New Jersey Register of Historic Places and the U.S. National Register of Historic Places, the only such home in Monroe Township. Constructed in 1860, the Italiante-style home covered . A proposed 2013 amendment to the township's master plan rezoned the site to commercial, which would allow potential reuse of the site.Makin, Cheryl. "Proposed zoning change imperils historic home", Home News Tribune, April 25, 2013. Accessed September 19, 2025, via Newspapers.com. "Originally, the house at 290 Rhode Hall Road, which mimics a Southern antebellum plantation, used to reign over cornfields. As time passed, the Holmes-Tallman House, built around 1860, stood not quite as tall in the midst of an ever-evolving mix of industry, business and highways. In a proposed land-use change by the township's 2013 Master Plan's Land Use Amendment, the site that now holds the 5,000-square-foot Carpenter Square Italianate home will change from residential to commercial." The house was demolished in 2025, before which efforts were made to preserve artifacts and to document the interior and exterior of the home.Update on the Holmes-Tallman House, Monroe Township Historic Preservation Commission. Accessed September 19, 2025.
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