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Green Brook Township, New Jersey
Township
Washington Avenue at the intersection of U.S. Route 22
Vail–Trust House
Official seal of Green Brook Township, New Jersey
Seal
Motto(s): 
"Small Enough to Know You, Large Enough to Get Things Done".
Location of Green Brook Township in Somerset County highlighted in yellow (right). Inset map: Location of Somerset County in New Jersey highlighted in black (left).  <mapframe text="Interactive map of Green Brook Township, New Jersey" zoom="8" width="250" height="250"> {  "type": "ExternalData",  "service": "geoshape",  "ids": "Q367261" } </mapframe>
Location of Green Brook Township in Somerset County highlighted in yellow (right). Inset map: Location of Somerset County in New Jersey highlighted in black (left).

<mapframe text="Interactive map of Green Brook Township, New Jersey" zoom="8" width="250" height="250"> { "type": "ExternalData", "service": "geoshape", "ids": "Q367261" }

</mapframe>
Census Bureau map of Green Brook Township, New Jersey.
Census Bureau map of Green Brook Township, New Jersey.
Green Brook Township, New Jersey is located in Somerset County, New Jersey
Green Brook Township, New Jersey
Green Brook Township, New Jersey
Location in Somerset County, New Jersey
Green Brook Township, New Jersey is located in New Jersey
Green Brook Township, New Jersey
Green Brook Township, New Jersey
Location in New Jersey
Green Brook Township, New Jersey is located in the United States
Green Brook Township, New Jersey
Green Brook Township, New Jersey
Location in the United States
Country  United States
State  New Jersey
County Somerset
Incorporated April 2, 1872 (as North Plainfield Township)
Reincorporated November 8, 1932 (as Green Brook Township)
Named for Green Brook
Government
 • Type Township
 • Body Township Committee
Area
 • Total 4.42 sq mi (11.43 km2)
 • Land 4.41 sq mi (11.42 km2)
 • Water 0.01 sq mi (0.02 km2)  0.18%
Area rank 285th of 565 in state
13th of 21 in county
Elevation
246 ft (75 m)
Population
 (2020)
 • Total 7,281
 • Estimate 
(2023)
7,291
 • Rank 312th of 565 in state
15th of 21 in county
 • Density 1,652.1/sq mi (637.9/km2)
 • Density rank 325th of 565 in state
7th of 21 in county
Time zone UTC−05:00 (Eastern (EST))
 • Summer (DST) UTC−04:00 (Eastern (EDT))
ZIP Code
08812
Area code(s) 732 and 908
FIPS code 3403527510
GNIS feature ID 0882172
Website

Green Brook Township is a township in Somerset County, in the U.S. state of New Jersey. It is centrally located within the Raritan Valley region. As of the 2020 United States census, the township's population was 7,281, an increase of 78 (+1.1%) from the 2010 census count of 7,203, which in turn reflected an increase of 1,549 (+27.4%) from the 5,654 counted in the 2000 census.

What is now Green Brook was originally created as North Plainfield Township on April 2, 1872, from portions of Warren Township. Portions of the township were taken to form North Plainfield borough (June 9, 1885) and Watchung (March 23, 1926). Green Brook was incorporated as a township by an act of the New Jersey Legislature on November 8, 1932, replacing North Plainfield Township, based on the results of a referendum held that same day.

Green Brook describes itself as "Small Enough to Know You, Large Enough to Get Things Done". Most of Green Brook shares ZIP Code 08812 with Dunellen.

History

In 1872, a tract of land was subdivided off from Warren Township. Thirteen years later, in 1885, the Borough of North Plainfield was created from a section of the subdivided land. The land at that time was designated as North Plainfield. In 1926, the Borough of Watchung was carved out of North Plainfield Township. The municipality's name was changed to Green Brook Township in 1932.

Green Brook Township takes its name from the waterway that passes through the township called the Green Brook that rises in the Watchung Mountains several miles away, feeding from many smaller brooks and ponds along the way, as it flows in a southwesterly direction for a distance of 15 miles (24 km). It then continues southwestward and flows into the Raritan River at Bound Brook, which provides access to the New York City area and the Atlantic Ocean. The brook was named for the color of its water.

Also contained within the township is Washington Rock State Park, which commemorates the spot where George Washington and Marquis de Lafayette watched the movement of the British soldiers during the American Revolutionary War, mainly the months of May and June 1777. The park was established on March 17, 1913, and is about 34 acres (140,000 m2) in size.

Geography

According to the United States Census Bureau, the township had a total area of 4.42 square miles (11.43 km2), including 4.41 square miles (11.42 km2) of land and 0.01 square miles (0.02 km2) of water (0.18%).

The township is in the Raritan Valley, a line of places in central New Jersey. Green Brook lies in the northern division of Raritan Valley along with the borough of North Plainfield.

Unincorporated communities, localities and place names located partially or completely within the township include Seeley Mills and Washington Rock.

The township borders the municipalities of Bridgewater Township, North Plainfield, Warren Township and Watchung in Somerset County; Middlesex borough and Dunellen in Middlesex County; and Plainfield in Union County.

Demographics

Historical population
Census Pop.
1880 3,217
1890 4,250 32.1%
1900 654 * −84.6%
1910 886 35.5%
1920 1,116 26.0%
1930 544 * −51.3%
1940 763 40.3%
1950 1,155 51.4%
1960 3,622 213.6%
1970 4,302 18.8%
1980 4,640 7.9%
1990 4,460 −3.9%
2000 5,654 26.8%
2010 7,203 27.4%
2020 7,281 1.1%
2023 (est.) 7,291 1.2%
Population sources:
1880–1920 1880–1890
1890–1910 1910–1930
1940–2000 2000
2010 2020
* = Lost territory in previous decade.

2020 census

Green Brook Township, Somerset County, New Jersey – Racial and ethnic composition
(NH = Non-Hispanic)
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
Race / Ethnicity Pop 2000 Pop 2010 Pop 2020 % 2000 % 2010 % 2020
White alone (NH) 4,134 4,917 4,134 56.78% 68.26% 56.78%
Black or African American alone (NH) 313 238 313 4.30% 3.30% 4.30%
Native American or Alaska Native alone (NH) 5 1 5 0.07% 0.01% 0.07%
Asian alone (NH) 1,743 1,453 1,743 23.94% 20.17% 23.94%
Pacific Islander alone (NH) 0 1 0 0.00% 0.01% 0.00%
Some Other Race alone (NH) 34 7 34 0.47% 0.10% 0.47%
Mixed Race/Multi-Racial (NH) 209 92 209 2.87% 1.28% 2.87%
Hispanic or Latino (any race) 843 494 843 11.58% 6.86% 11.58%
Total 7,281 7,203 7,281 100.00% 100.00% 100.00%

2010 census

The 2010 United States census counted 7,203 people, 2,375 households, and 1,945 families in the township. The population density was 1,610.5 per square mile (621.8/km2). There were 2,448 housing units at an average density of 547.3 per square mile (211.3/km2). The racial makeup was 73.54% (5,297) White, 3.37% (243) Black or African American, 0.04% (3) Native American, 20.21% (1,456) Asian, 0.04% (3) Pacific Islander, 1.12% (81) from other races, and 1.67% (120) from two or more races. Hispanic or Latino of any race were 6.86% (494) of the population.

Of the 2,375 households, 42.1% had children under the age of 18; 69.6% were married couples living together; 9.6% had a female householder with no husband present and 18.1% were non-families. Of all households, 14.6% were made up of individuals and 5.2% had someone living alone who was 65 years of age or older. The average household size was 2.96 and the average family size was 3.30.

26.4% of the population were under the age of 18, 5.8% from 18 to 24, 23.0% from 25 to 44, 31.4% from 45 to 64, and 13.5% who were 65 years of age or older. The median age was 42.1 years. For every 100 females, the population had 93.3 males. For every 100 females ages 18 and older there were 90.3 males.

The Census Bureau's 2006–2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $115,268 (with a margin of error of +/− $15,162) and the median family income was $123,796 (+/− $10,668). Males had a median income of $74,231 (+/− $16,708) versus $75,703 (+/− $8,965) for females. The per capita income for the borough was $49,068 (+/− $5,197). About 0.9% of families and 1.3% of the population were below the poverty line, including 1.8% of those under age 18 and 1.7% of those age 65 or over.

Education

The Green Brook School District serves public school students in pre-kindergarten through eighth grade. As of the 2019–20 school year, the district, comprised of two schools, had an enrollment of 770 students and 81.7 classroom teachers (on an FTE basis), for a student–teacher ratio of 9.4:1. Schools in the district (with 2019–20 enrollment data from the National Center for Education Statistics) are Irene E. Feldkirchner Elementary School with 374 students in grades Pre-K–4 and Green Brook Middle School with 393 students in grades 5–8.

Green Brook's public school students in ninth through twelfth grades attend Watchung Hills Regional High School in Warren Township. Students from Green Brook and from the neighboring communities of Watchung, Warren Township (in Somerset County), and Long Hill Township (in Morris County) attend the school. As of the 2019–20 school year, the high school had an enrollment of 1,948 students and 160.6 classroom teachers (on an FTE basis), for a student–teacher ratio of 12.1:1.

Transportation

2018-05-29 15 23 30 View east along U.S. Route 22 at Cramer Avenue in Green Brook Township, Somerset County, New Jersey
U.S. Route 22 in Green Brook

Roads and highways

As of May 2010, the township had a total of 36.19 miles (58.24 km) of roadways, of which 25.49 miles (41.02 km) were maintained by the municipality, 7.47 miles (12.02 km) by Somerset County and 3.23 miles (5.20 km) by the New Jersey Department of Transportation.

U.S. Route 22 is the most prominent highway directly serving Green Brook. County Route 527 and County Route 529 also pass through.

Public transportation

NJ Transit provides local bus service on the 822 route.

Community organizations

There are several committees and organizations within the township of Green Brook. Green Brook has a Baptist church on Greenbrook Road. There is the Green Brook Seniors, which is held at the Senior Center. This is a place for all township seniors to meet and participate in different events. Green Brook also has a Lions Club, which volunteers for different causes. The Green Brook Recreation Committee is a volunteer organization that provides programs and event for all residents.

Notable people

See also (related category): People from Green Brook Township, New Jersey

People who were born in, residents of, or otherwise closely associated with Green Brook Township include:

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