| Green Knoll, New Jersey | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | USA New Jersey Somerset County#USA New Jersey#USA |
| Pushpin Label: | Green Knoll |
| Pushpin Map Caption: | Location in Somerset County##Location in New Jersey##Location in the United States |
| Pushpin Relief: | yes |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Somerset |
| Subdivision Type3: | Township |
| Subdivision Name3: | Bridgewater |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 12.01 |
| Area Land Km2: | 12.00 |
| Area Water Km2: | 0.01 |
| Area Total Sq Mi: | 4.64 |
| Area Land Sq Mi: | 4.63 |
| Area Water Sq Mi: | 0.00 |
| Area Water Percent: | 0.07 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 6594 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | 1422.7 |
| Timezone: | Eastern (EST) |
| Utc Offset: | −05:00 |
| Timezone Dst: | Eastern (EDT) |
| Utc Offset Dst: | −04:00 |
| Elevation Footnotes: | [3] |
| Elevation M: | 56 |
| Elevation Ft: | 184 |
| Coordinates Footnotes: | [4] [5] |
| Coordinates: | 40.6047°N -74.6145°W |
| Area Code: | 908 |
| Blank Name: | FIPS code |
| Blank Info: | [6] [7] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 02583993[8] |
Green Knoll is an unincorporated community and census-designated place (CDP)[9] located within Bridgewater Township, in Somerset County, in the U.S. state of New Jersey.[10] [11] [12] As of the 2010 United States Census, the CDP's population was 6,200.[13]
According to the United States Census Bureau, Green Knoll had a total area of 4.710 square miles (12.199 km2), including 4.707 square miles (12.191 km2) of land and 0.003 square miles (0.008 km2) of water (0.07%).[4]
The 2010 United States census counted 6,200 people, 2,441 households, and 1,628 families in the CDP. The population density was . There were 2,521 housing units at an average density of . The racial makeup was 79.60% (4,935) White, 3.21% (199) Black or African American, 0.13% (8) Native American, 14.82% (919) Asian, 0.00% (0) Pacific Islander, 0.79% (49) from other races, and 1.45% (90) from two or more races. Hispanic or Latino of any race were 6.08% (377) of the population.[13]
Of the 2,441 households, 31.1% had children under the age of 18; 56.9% were married couples living together; 7.0% had a female householder with no husband present and 33.3% were non-families. Of all households, 30.1% were made up of individuals and 19.3% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 3.10.[13]
22.5% of the population were under the age of 18, 5.5% from 18 to 24, 20.7% from 25 to 44, 29.2% from 45 to 64, and 22.0% who were 65 years of age or older. The median age was 45.7 years. For every 100 females, the population had 85.1 males. For every 100 females ages 18 and older there were 81.8 males.[13]