Greenwich Township () is the westernmost township in Cumberland County, in the U.S. state of New Jersey. As of the 2020 United States census, the township's population was 771, a decrease of 33 (−4.1%) from the 2010 census count of 804, which in turn reflected a decline of 43 (−5.1%) from the 847 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. It is part of the Vineland-Bridgeton metropolitan statistical area, which encompasses those cities and all of Cumberland County for statistical purposes and which constitutes a part of the Philadelphia metropolitan area.New Jersey: 2020 Core Based Statistical Areas and Counties, United States Census Bureau. Accessed December 22, 2022.

History Greenwich Township was first formed as a precinct on January 19, 1748, and was incorporated by an act of the New Jersey Legislature on February 21, 1798, as one of New Jersey's initial group of 104 townships. Portions of Hopewell Township and Stow Creek Township were annexed in 1845.Snyder, John P. The Story of New Jersey's Civil Boundaries: 1606-1968, Bureau of Geology and Topography; Trenton, New Jersey; 1969. p. 120. Accessed October 23, 2012. The township was named for Greenwich, England.Hutchinson, Viola L. The Origin of New Jersey Place Names, New Jersey Public Library Commission, May 1945. Accessed August 31, 2015.Herman, Jennifer New Jersey Encyclopedia, p. 281. State History Publications, 2008. . Accessed August 31, 2015.

In 1774, during the run-up to the American Revolutionary War, the small community on the Cohansey River was the site of the Greenwich Tea Party, in which a load of tea meant to be sent overland into Philadelphia, Pennsylvania, was torched in the night.The Burning of the Tea at Cohansey., accessed June 8, 2006.Rose, Lisa. "Flashback to great 'tea burning' of 1774, the pride of a South Jersey town", The Star-Ledger, June 29, 2014. Accessed June 30, 2014. "The small town of Greenwich in Cumberland County was the site of a tea burning protest against the British in 1774." After the Revolutionary War, the pronunciation of the town was changed to Green-witch to differentiate itself from its English namesake."TOWN PINS HOPES ON RIVER PORT BUT ENVIRONMENTALISTS FEAR LOSS OF A LIFESTYLE", The Philadelphia Inquirer, October 21, 1990. Accessed March 7, 2011. "They carved the town out of the state's southwestern forests, pronouncing the name 'Green-witch' because the more traditional 'Gren-itch' sounded too British."

Geography According to the United States Census Bureau, the township had a total area of 18.75 square miles (48.55 km2), including 17.77 square miles (46.03 km2) of land and 0.97 square miles (2.52 km2) of water (5.19%).

The township borders the municipalities of Fairfield Township, Hopewell Township and Stow Creek Township in Cumberland County; and Lower Alloways Creek Township in Salem County and the Delaware Bay.Map of Cumberland County, New Jersey Department of Transportation. Accessed October 28, 2019.New Jersey Municipal Boundaries, New Jersey Department of Transportation. Accessed November 15, 2019.

Unincorporated communities, localities and place names located partially or completely within the township include Bacons Neck, Bayside, Caviar, Davis Mills, Greenwich, Othello, Sheppards Mill, Springtown and Stathams Neck.Locality Search, State of New Jersey. Accessed April 29, 2015.

Demographics

2010 census The 2010 United States census counted 804 people, 336 households, and 229 families in the township. The population density was 45.1 per square mile (17.4/km2). There were 369 housing units at an average density of 20.7 per square mile (8.0/km2). The racial makeup was 91.42% (735) White, 3.73% (30) Black or African American, 1.24% (10) Native American, 0.50% (4) Asian, 0.00% (0) Pacific Islander, 0.62% (5) from other races, and 2.49% (20) from two or more races. Hispanic or Latino of any race were 2.61% (21) of the population.

Of the 336 households, 21.7% had children under the age of 18; 57.1% were married couples living together; 6.8% had a female householder with no husband present and 31.8% were non-families. Of all households, 26.5% were made up of individuals and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.89.

19.8% of the population were under the age of 18, 5.3% from 18 to 24, 21.3% from 25 to 44, 35.6% from 45 to 64, and 18.0% who were 65 years of age or older. The median age was 47.7 years. For every 100 females, the population had 101.0 males. For every 100 females ages 18 and older there were 104.1 males.

The Census Bureau's 2006–2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $55,833 (with a margin of error of +/− $17,252) and the median family income was $80,000 (+/− $16,466). Males had a median income of $55,938 (+/− $11,759) versus $55,833 (+/− $25,039) for females. The per capita income for the borough was $31,044 (+/− $4,936). About 5.3% of families and 9.7% of the population were below the poverty line, including 12.5% of those under age 18 and 6.5% of those age 65 or over.DP03: Selected Economic Characteristics from the 2006-2010 American Community Survey 5-Year Estimates for Greenwich township, Cumberland County, New Jersey , United States Census Bureau. Accessed October 23, 2012.

2000 census As of the 2000 United States census there were 847 people, 326 households, and 245 families residing in the township. The population density was . There were 361 housing units at an average density of . The racial makeup of the township was 89.96% White, 5.08% African American, 2.60% Native American, 0.24% Asian, 0.12% from other races, and 2.01% from two or more races. Hispanic or Latino of any race were 1.53% of the population.Census 2000 Profiles of Demographic / Social / Economic / Housing Characteristics for Greenwich township, Cumberland County, New Jersey , United States Census Bureau. Accessed October 23, 2012.DP-1: Profile of General Demographic Characteristics: 2000 - Census 2000 Summary File 1 (SF 1) 100-Percent Data for Greenwich township, Cumberland County, New Jersey , United States Census Bureau. Accessed October 23, 2012.

There were 326 households, out of which 27.3% had children under the age of 18 living with them, 62.0% were married couples living together, 8.0% had a female householder with no husband present, and 24.8% were non-families. 21.8% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.05.

In the township the population was spread out, with 22.0% under the age of 18, 7.0% from 18 to 24, 23.0% from 25 to 44, 33.2% from 45 to 64, and 14.9% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 98.4 males. For every 100 females age 18 and over, there were 99.1 males.

The median income for a household in the township was $52,188, and the median income for a family was $56,111. Males had a median income of $43,214 versus $30,208 for females. The per capita income for the township was $22,233. About 6.1% of families and 8.0% of the population were below the poverty line, including 8.7% of those under age 18 and 17.1% of those age 65 or over.

Government

Local government Greenwich Township is governed under the Township form of New Jersey municipal government, one of 141 municipalities (of the 564) statewide that use this form, the second-most commonly used form of government in the state.Inventory of Municipal Forms of Government in New Jersey, Rutgers University Center for Government Studies, July 1, 2011. Accessed June 1, 2023. The governing body is comprised of a three-member Township Committee, whose members are elected directly by the voters at-large in partisan elections to serve three-year terms of office on a staggered basis, with one seat coming up for election each year as part of the November general election in a three-year cycle.2012 New Jersey Legislative District Data Book, Rutgers University Edward J. Bloustein School of Planning and Public Policy, March 2013, p. 19."Forms of Municipal Government in New Jersey", p. 7. Rutgers University Center for Government Studies. Accessed June 1, 2023.Cerra, Michael F. "Forms of Government: Everything You've Always Wanted to Know, But Were Afraid to Ask", New Jersey State League of Municipalities, March 2007. Accessed January 1, 2025. At an annual reorganization meeting, the Township Committee selects one of its members to serve as Mayor and another to serve as Deputy Mayor.

, members of the Greenwich Township Committee are Mayor William C. "Bill" Reinhart (D, term on committee ends December 31, 2026; term as mayor ends 2025), Deputy Mayor Daniel J. Orr (D, term on committee and as deputy mayor ends 2025) and Mark Werley (D, 2027).Township Government, Historic Greenwich NJ. Accessed July 29, 2025. "Greenwich Township is governed under the Township form of government. The governing body is a three-member Township Committee, whose members are elected directly by the voters at-large in partisan elections to serve three-year terms of office on a staggered basis, with one seat coming up for election each year as part of the November general election in a three-year cycle. At an annual reorganization meeting, the Township Committee selects one of its members to serve as Mayor and another to serve as Deputy Mayor".2024 Municipal Data Sheet, Historic Greenwich Township. Accessed August 28, 2023.2024 Directory of Cumberland County, New Jersey, Cumberland County, New Jersey. Accessed July 1, 2025.General Election Results November 5, 2024, Official Results, Cumberland County, New Jersey, updated November 22, 2024. Accessed January 1, 2025.November 7, 2023 General Election Results, Cumberland County, New Jersey, updated November 20, 2023. Accessed January 1, 2024.Election Summary Report General Election Cumberland County November 8, 2022, Cumberland County, New Jersey, updated November 28, 2022. Accessed January 1, 2023.

In January 2013, Dan Orr was selected by the Township Council from among three candidates offered by the Democratic municipal committee to serve the unexpired term of Bill Kiefer, who resigned from office earlier that month.Woods, Don E. "Greenwich Township gets new mayor, deputy mayor, member", South Jersey Times, January 16, 2013. Accessed September 9, 2013. "The township is back to full strength after appointing Dan Orr as the new committeeman at Tuesday's meeting. A seat on the three-person committee opened after Mayor Ted Kiefer resigned on Jan. 2.... During the same meeting, William C. Reinhart and Port were appointed as mayor and deputy mayor, respectively. Reinhart and Orr are both Democrats while Port ran as Republican last election."

In 2018, the township had an average property tax bill of $6,372, the highest in the county, compared to an average bill of $8,767 statewide.Marcus, Samantha. "These are the towns with the highest property taxes in each of N.J.’s 21 counties", NJ Advance Media for NJ.com, April 22, 2019. Accessed November 5, 2019. "The average property tax bill in New Jersey was $8,767 last year. But there can be big swings from town to town and county to county.... The average property tax bill in Greenwich Township was $6,372 in 2017, the highest in Cumberland County."

Federal, state, and county representation Greenwich Township is located in the 2nd Congressional District2022 Redistricting Plan, New Jersey Redistricting Commission, December 8, 2022. and is part of New Jersey's 3rd state legislative district.Districts by Number for 2023-2031, New Jersey Legislature. Accessed September 18, 2023.

Politics