East Rocky Hill, New Jersey

East Rocky Hill, New Jersey
Census-designated place
East Rocky Hill Location in Somerset County Show map of Somerset County, New Jersey East Rocky Hill Location in New Jersey Show map of New Jersey East Rocky Hill Location in the United States Show map of the United States
Coordinates: 40°24′54″N74°37′04″W / 40.415133°N 74.617903°W / 40.415133; -74.617903 [1] [2]
Country	United States
State	New Jersey
County	Somerset
Township	Franklin
Area [3]
• Total	4.25 sq mi (11.01 km2)
• Land	4.17 sq mi (10.79 km2)
• Water	0.08 sq mi (0.21 km2)  2.05%
Elevation [4]	289 ft (88 m)
Population  (2020) [5]
• Total	468
• Density	112.31/sq mi (43.37/km2)
Time zone	UTC−05:00 (Eastern (EST))
• Summer (DST)	UTC−04:00 (Eastern (EDT))
Area code(s)	609 and 732/848
FIPS code	34-19490 [1] [6]
GNIS feature ID	02583986 [1]

East Rocky Hill is an unincorporated community and census-designated place (CDP) ^[7] located in Franklin Township, in Somerset County, in the U.S. state of New Jersey. ^{[8] [9] [10]} As of the 2010 United States Census, the CDP's population was 469. ^[11]

Geography

According to the United States Census Bureau, East Rocky Hill had a total area of 4.252 square miles (11.014 km²), including 4.165 square miles (10.788 km²) of land and 0.087 square miles (0.226 km²) of water (2.05%). ^{[1] [2]}

Demographics

Historical population

Census	Pop.	Note	%±
2010	469		—
2020	468		−0.2%
Population sources: 2010 [11] 2020 [5]

2010 census

The 2010 United States census counted 469 people, 160 households, and 115 families in the CDP. The population density was 112.6 per square mile (43.5/km²). There were 172 housing units at an average density of 41.3 per square mile (15.9/km²). The racial makeup was 74.20% (348) White, 7.68% (36) Black or African American, 0.00% (0) Native American, 7.04% (33) Asian, 0.00% (0) Pacific Islander, 8.96% (42) from other races, and 2.13% (10) from two or more races. Hispanic or Latino of any race were 15.57% (73) of the population. ^[11]

Of the 160 households, 30.0% had children under the age of 18; 64.4% were married couples living together; 4.4% had a female householder with no husband present and 28.1% were non-families. Of all households, 22.5% were made up of individuals and 8.8% had someone living alone who was 65 years of age or older. The average household size was 2.93 and the average family size was 3.39. ^[11]

26.4% of the population were under the age of 18, 7.2% from 18 to 24, 22.2% from 25 to 44, 29.6% from 45 to 64, and 14.5% who were 65 years of age or older. The median age was 40.6 years. For every 100 females, the population had 110.3 males. For every 100 females ages 18 and older there were 100.6 males. ^[11]

References

1. Gazetteer of New Jersey Places, United States Census Bureau. Accessed July 21, 2016.
2. US Gazetteer files: 2010, 2000, and 1990, United States Census Bureau. Accessed September 4, 2014.
3. "ArcGIS REST Services Directory". United States Census Bureau. Retrieved October 11, 2022.
4. U.S. Geological Survey Geographic Names Information System: East Rocky Hill Census Designated Place, Geographic Names Information System. Accessed August 23, 2012.
5. Census Data Explorer: East Rocky Hill CDP, New Jersey, United States Census Bureau. Accessed June 15, 2023.
6. Geographic Codes Lookup for New Jersey, Missouri Census Data Center. Accessed June 9, 2023.
7. State of New Jersey Census Designated Places - BVP20 - Data as of January 1, 2020, United States Census Bureau. Accessed December 1, 2022.
8. GCT-PH1 - Population, Housing Units, Area, and Density: 2010 - County -- County Subdivision and Place from the 2010 Census Summary File 1 for Somerset County, New Jersey Archived 2020-02-12 at archive.today , United States Census Bureau. Accessed February 11, 2013.
9. 2006-2010 American Community Survey Geography for New Jersey, United States Census Bureau. Accessed February 11, 2013.
10. New Jersey: 2010 - Population and Housing Unit Counts - 2010 Census of Population and Housing (CPH-2-32), United States Census Bureau, August 2012. Accessed February 11, 2013.
11. DP-1 - Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data for East Rocky Hill CDP, New Jersey Archived February 12, 2020, at archive.today , United States Census Bureau. Accessed August 23, 2012.