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Rocky Hill, New Jersey
Borough
Borough of Rocky Hill
Dutch Reformed Church, built 1856, at the heart of the Rocky Hill Historic District
Dutch Reformed Church, built 1856, at the heart of the Rocky Hill Historic District
Map of Rocky Hill in Somerset County. Inset: Location of Somerset County highlighted in the State of New Jersey.
Map of Rocky Hill in Somerset County. Inset: Location of Somerset County highlighted in the State of New Jersey.
Census Bureau map of Rocky Hill, New Jersey
Census Bureau map of Rocky Hill, New Jersey
Country  United States
State  New Jersey
County Flag of Somerset County, New Jersey.gif Somerset
Incorporated December 18, 1889
Government
 • Type Borough
 • Body Borough Council
Area
 • Total 0.61 sq mi (1.59 km2)
 • Land 0.61 sq mi (1.58 km2)
 • Water <0.01 sq mi (0.01 km2)  0.49%
Area rank 539th of 565 in state
21st of 21 in county
Elevation
108 ft (33 m)
Population
 • Total 682
 • Estimate 
(2019)
669
 • Rank 548th of 566 in state
20th of 21 in county
 • Density 1,101.4/sq mi (425.3/km2)
 • Density rank 370th of 566 in state
11th of 21 in county
Time zone UTC−05:00 (Eastern (EST))
 • Summer (DST) UTC−04:00 (Eastern (EDT))
ZIP Code
08553
Area code(s) 609 Exchanges: 252, 279, 430, 921, 924
FIPS code 3403564320
GNIS feature ID 0885376

Rocky Hill is a borough in Somerset County, New Jersey, United States, named for the Rocky Hill Ridge. Before roads were improved and people traveled by automobiles, it was known as the Devil's Featherbed because it was difficult to travel the rocky terrain by horse and wagon.

As of the 2010 United States Census, the rural borough's population was 682, reflecting an increase of 20 (+3.0%) from the 662 counted in the 2000 Census. This was a decline of 31 persons (-4.5%) from the 693 counted in the 1990 Census.

Rocky Hill was incorporated as a borough by an act of the New Jersey Legislature on December 18, 1889, from portions of Montgomery Township, based on the results of a referendum held four days earlier.

Geography

According to the United States Census Bureau, the borough had a total area of 0.622 square miles (1.612 km2), including 0.619 square miles (1.604 km2) of land and 0.003 square miles (0.008 km2) of water (0.52%).

The borough borders the Somerset County municipalities of Franklin Township and Montgomery Township.

Demographics

Historical population
Census Pop.
1900 354
1910 502 41.8%
1920 305 −39.2%
1930 512 67.9%
1940 404 −21.1%
1950 537 32.9%
1960 528 −1.7%
1970 917 73.7%
1980 717 −21.8%
1990 693 −3.3%
2000 662 −4.5%
2010 682 3.0%
2019 (est.) 669 −1.9%
Population sources: 1900-1920
1900-1910 1910-1930
1930-1990 2000 2010

Census 2010

As of the census of 2010, there were 682 people, 280 households, and 189 families residing in the borough. The population density was 1,101.4 per square mile (425.3/km2). There were 292 housing units at an average density of 471.6 per square mile (182.1/km2)*. The racial makeup of the borough was 91.64% (625) White, 1.47% (10) Black or African American, 0.00% (0) Native American, 2.35% (16) Asian, 0.00% (0) Pacific Islander, 1.47% (10) from other races, and 3.08% (21) from two or more races. [[Hispanic (U.S. Census)|Hispanic or Latino of any race were 4.84% (33) of the population.

There were 280 households out of which 29.3% had children under the age of 18 living with them, 56.4% were married couples living together, 8.6% had a female householder with no husband present, and 32.5% were non-families. 26.4% of all households were made up of individuals, and 8.2% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.95.

In the borough, the population was spread out with 23.2% under the age of 18, 4.7% from 18 to 24, 21.3% from 25 to 44, 32.4% from 45 to 64, and 18.5% who were 65 years of age or older. The median age was 45.9 years. For every 100 females there were 103.0 males. For every 100 females ages 18 and old there were 91.2 males.

The Census Bureau's 2006-2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $88,929 (with a margin of error of +/- $14,448) and the median family income was $102,917 (+/- $21,668). Males had a median income of $88,333 (+/- $16,491) versus $57,083 (+/- $7,607) for females. The per capita income for the borough was $47,582 (+/- $7,276). About none of families and 3.3% of the population were below the poverty line, including none of those under age 18 and none of those age 65 or over.

Census 2000

As of the 2000 United States Census there were 662 people, 284 households, and 189 families residing in the borough. The population density was 982.0 people per square mile (381.5/km2). There were 295 housing units at an average density of 437.6 per square mile (170.0/km2). The racial makeup of the borough was 95.17% White, 1.36% African American, 0.45% Asian, 0.60% Pacific Islander, 0.91% from other races, and 1.51% from two or more races. Hispanic or Latino of any race were 3.93% of the population.

There were 284 households, out of which 24.3% had children under the age of 18 living with them, 60.9% were married couples living together, 4.9% had a female householder with no husband present, and 33.1% were non-families. 27.8% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older. The average household size was 2.33 and the average family size was 2.82.

In the borough the population was spread out, with 20.2% under the age of 18, 3.3% from 18 to 24, 28.1% from 25 to 44, 31.1% from 45 to 64, and 17.2% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 98.2 males. For every 100 females age 18 and over, there were 95.6 males.

The median income for a household in the borough was $79,469, and the median income for a family was $100,314. Males had a median income of $54,375 versus $50,357 for females. The per capita income for the borough was $48,357. About 2.5% of families and 2.7% of the population were below the poverty line, including 1.8% of those under age 18 and 5.3% of those age 65 or over.

Transportation

2018-05-29 14 08 51 View east along Somerset County Route 518 (Washington Street) just west of Somerset County Route 605 (Crescent Avenue) in Rocky Hill, Somerset County, New Jersey
CR 518 at CR 605 in Rocky Hill

Roads and highways

As of May 2010, the borough had a total of 4.38 miles (7.05 km) of roadways, of which 2.88 miles (4.63 km) were maintained by the municipality and 1.50 miles (2.41 km) by Somerset County.

The major road that passes through is County Route 518, which provides access to U.S. Route 206 to the west and Route 27 to the east. The nearest limited access roads are at least 25 minutes away, such as Interstate 287, Interstate 295 and the New Jersey Turnpike (Interstate 95).

Airport

Princeton Airport, serving the neighboring town of Princeton, is located in Montgomery Township, just west of Rocky Hill.

Education

The Montgomery Township School District is a comprehensive public school district, consisting of five school facilities in Montgomery Township, that serves students in pre-kindergarten through twelfth grade from both Montgomery Township and Rocky Hill. As of the 2017–18 school year, the district, comprised of five schools, had an enrollment of 4,757 students and 407.4 classroom teachers (on an FTE basis), for a student–teacher ratio of 11.7:1. Schools in the district (with 2017-18 enrollment data from the National Center for Education Statistics) are Orchard Hill Elementary School (866 students; in grades PreK-2), Village Elementary School (679; 3-4), Montgomery Lower Middle School (708; 5-6), Montgomery Upper Middle School (826; 7-8) and Montgomery High School (1,640; 9-12). Rocky Hill had been a non-operating school district that had sent all of its students to the Montgomery Township School District, as part of a sending/receiving relationship. With the termination of the non-operating district, Rocky Hill operates as part of the Montgomery district.

Rocky Hill is home to the Rocky Hill Cooperative Nursery School, which was established in 1957.

Notable people

See also (related category): People from Rocky Hill, New Jersey

People who were born in, residents of, or otherwise closely associated with Rocky Hill include:

  • John Berrien (1711–1772), justice of the New Jersey Supreme Court and trustee of the College of New Jersey, now Princeton University
  • John Berrien Jr. (1759–1815), army officer during the Revolutionary War
  • John Macpherson Berrien (1781–1856), served as United States Attorney General and represented Georgia in the United States Senate.
  • Anthony Cassar (born 1996) freestyle wrestler who was the NCAA Division I champion.
  • Tom Malinowski (born 1965), diplomat and politician who represents New Jersey's 7th congressional district.
  • George Washington stayed in Rockingham, the house of the Berrien family, in the late summer of 1783, while Congress was in session in Princeton.
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