All Countries
Green Knoll, NJ
Full City Profile · New Jersey · Somerset County County
3.9
/5.0
B+
Good
6,664
Population
1,436/sq mi density
$156,630
Median Income
$64,652 per capita
$581,600
Home Value
$530,141 Zillow
$1,417
Median Rent
38.2% income on rent
51°F
Avg Temperature
275 sunny days/yr
164
Violent Crime/100K
1,527 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$156,630 median income, 2.7% unemployment
A+
Affordability
4.6 / 5.0
$581,600 home value, $1,417/mo rent
F
Safety
1.0 / 5.0
164 violent crimes/100K
A+
Education
5.0 / 5.0
58.4% bachelor's degree or higher
Change Over Time (2013, 2023)
Population Change
+20.7%
5,521 → 6,664
over 10 years
Annual Pop. Growth
+1.9%
Compound annual growth rate
Median Income Change
+38.1%
$113,438 → $156,630
nominal, not inflation-adjusted
Annual Income Growth
+3.28%
Compound annual growth rate
Population Over Time
Total population for Green Knoll across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013, 2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts, real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
7,602
+938 from 2023 (6,664)
Projected Median Income 2030
$196,331
+$39,701 from 2023 ($156,630)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 5,521 | - | $113,438 | - |
| 2015 | 6,403 | +16% | $111,558 | -1.7% |
| 2017 | 6,614 | +3.3% | $114,738 | +2.9% |
| 2019 | 6,631 | +0.3% | $118,016 | +2.9% |
| 2021 | 6,480 | -2.3% | $136,034 | +15.3% |
| 2023 | 6,664 | +2.8% | $156,630 | +15.1% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.