Demographics of Green Knoll CDP, New Jersey

Green Knoll CDP, New Jersey had 6,789 ±878 people in the American Community Survey, averaged over 2020–2024. The Census Bureau’s yearly estimates do not cover it: they count incorporated places and towns, not census-designated places. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Green Knoll CDP, in four figures

6,789 ±878
Population: ACS 2020–⁠2024. The Bureau publishes no yearly estimate for a census-designated place.; 236th
Among New Jersey's places: Of 295 of 5,000 or more, by the survey's count.; 44.5 ±2.7
Median age: ACS 2020–⁠2024.; $165,227 ±$33,580
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Age, 2020–2024

The median age is 44.5 ±2.7: for men 43.2 ±5.3 and for women 46.5 ±4.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Green Knoll CDP by age, ACS 2020–2024
Age	People	Share	New Jersey	United States
Under 5	301 ±140	4.4% ±2.0	5.6% ±<0.1	5.6% ±<0.1
5 to 17	1,033 ±213	15.2% ±2.4	16.2% ±0.1	16.3% ±<0.1
18 to 24	548 ±213	8.1% ±3.0	8.4% ±0.1	9.1% ±<0.1
25 to 44	1,596 ±288	23.5% ±3.0	26.2% ±0.1	26.9% ±<0.1
45 to 64	1,650 ±236	24.3% ±1.5	26.5% ±0.1	24.8% ±<0.1
65 and over	1,661 ±265	24.5% ±2.3	17.2% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $165,227 ±$33,580, and income per person $67,008 ±$5,516, in 2024 dollars. The median is $103,556 ±$513 in New Jersey and $80,734 ±$166 in the United States.

Households by income

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Households in Green Knoll CDP by income, ACS 2020–2024
Household income	Households	Share	New Jersey	United States
Under $25,000	59 to 187	2.5% to 7.9%	11.6% ±0.2	14.6% ±<0.1
$25,000 to $49,999	333 ±161	14.1% ±6.7	12.8% ±0.2	16.7% ±<0.1
$50,000 to $74,999	175 ±68	7.4% ±2.8	12.8% ±0.2	15.5% ±<0.1
$75,000 to $99,999	111 ±51	4.7% ±2.1	11.3% ±0.2	12.6% ±<0.1
$100,000 to $149,999	331 ±110	14.0% ±4.4	18.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	219 ±92	9.2% ±3.8	11.8% ±0.2	9.6% ±<0.1
$200,000 or more	1,076 ±169	45.4% ±5.4	21.6% ±0.2	13.4% ±0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Green Knoll CDP by age, ACS 2020–2024
Age	Below poverty	Rate	New Jersey	United States
All ages	217 ±74	3.3% ±1.0	9.7% ±0.2	12.5% ±0.1
Under 18	0 to 35	0% to 2.6%	13.0% ±0.3	16.1% ±0.1
18 to 59	0 to 84	< 0.1% to 2.5%	8.6% ±0.2	11.6% ±0.1
60 and over	175 ±72	8.9% ±3.3	9.3% ±0.2	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

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Housing in Green Knoll CDP, ACS 2020–2024
Measure	Green Knoll CDP	New Jersey	United States
Housing units	2,495 ±253	3,791,354 ±469	143,775,355 ±10,234
Occupied	94.9% ±2.1	92.5% ±0.1	89.9% ±0.1
Vacant	1.5% to 8.7%	7.5% ±0.1	10.1% ±0.1
Owner occupied	78.8% ±11.5	63.8% ±0.3	65.2% ±0.3
Renter occupied	21.2% ±6.6	36.2% ±0.2	34.8% ±0.1
Median home value	$597,100 ±$30,926	$454,400 ±$1,150	$332,700 ±$236
Median gross rent	$558 to $2,338	$1,720 ±$7	$1,413 ±$2
Median year built	1979 ±6	1970 ±1	1980 ±1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Green Knoll CDP by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	New Jersey	United States
Hispanic or Latino	419 ±182	6.2% ±2.6	22.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	4,321 ±803	63.6% ±8.5	50.9% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	131 to 529	2.0% to 7.7%	12.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,471 ±415	21.7% ±5.4	10.0% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 20	0% to 0.3%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 22	0% to 0.3%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 180	0% to 2.6%	0.8% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	75 to 247	1.1% to 3.6%	3.5% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Green Knoll CDP by place of birth and citizenship, ACS 2020–2024
Born	People	Share	New Jersey	United States
Born in the state	4,186 ±648	61.7% ±5.2	50.8% ±0.2	57.3% ±<0.1
Born in another state	1,158 ±261	17.1% ±3.1	22.7% ±0.1	26.9% ±<0.1
Born a citizen outside the states	52 to 208	0.8% to 3.0%	2.6% ±<0.1	1.7% ±<0.1
Born abroad	1,315 ±326	19.4% ±4.1	23.9% ±0.2	14.1% ±<0.1
Naturalized citizens	861 ±224	12.7% ±2.9	13.5% ±0.1	7.4% ±<0.1
Not citizens	454 ±192	6.7% ±2.7	10.5% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Green Knoll CDP among the places of New Jersey

236th of 295 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the New Jersey page.

Places of New Jersey near Green Knoll CDP in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Midland Park borough	7,019 ±23
Stratford borough	7,018 ±34
Linwood city	6,992 ±27
Lincroft CDP	6,939 ±663
Allendale borough	6,865 ±44
Green Knoll CDP	6,789 ±878
Strathmore CDP	6,708 ±739
Kingston Estates CDP	6,668 ±889
North Caldwell borough	6,656 ±20
Franklin Center CDP	6,646 ±837
Rockaway borough	6,613 ±18

Rankings this appears in

No. 9 Places in New Jersey by median household income
No. 11 Places in New Jersey by median age
No. 23 Places in New Jersey by homeownership rate
No. 38 Places in New Jersey by per capita income
No. 58 Places by median household income
No. 62 Places in New Jersey by median home value

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026