Living in Green Knoll

In Green Knoll, unemployment is 4.2% (2024).

Green Knoll's population was 6,594 at the end of 2020. The unemployment rate was 4.23% at the end of 2024. Green Knoll had a foreign population of 1,315 at the end of 2024.

Last checked 2026-10-0722 sources

Population6,594people31 Dec 2020Official source · U.S. Census Bureau, TIGERweb Census 2020

Median gross salary5,920EUR/month31 Dec 2020Official source · 2024 American Community Survey 5-year detailed tables

Median rent1,338EUR/month31 Dec 2020Official source · ACS 2020-2024 5-year table-based Summary File, table B25064 (Median Gross Rent), place records

Unemployment rate4.23%country median 4.6% — 7% belowOfficial source · Census Reporter (underlying U.S. Census ACS)

PM2.5, annual mean7.23µg/m³31 Dec 2024Nearest stationOfficial source · U.S. EPA Air Quality System / AirData

Which United States-wide rules apply when you move to Green Knoll?

National rules stay on the country page instead of being relabelled as city data.

Visa and entry rulesPassport-specific entry and national residence context.BenefitsCountry-wide eligibility and official application routes.Taxes in United StatesNational rates and thresholds that apply in Green Knoll.Healthcare eligibilityCountry-wide insurance and residence conditions.

Housing and cost

What recurs every month2 published recurring costs, € per month

€ / month

Internet, 60 Mbps€60

Mobile plan, 10 GB€22

Metric	Value	Period	Source
Internet, 60 Mbps unlimited	60.38 EUR/month	30 Sept 2026	Verizon 300 Mbps home internet¹⁵Official · national market
Mobile plan, 10 GB	21.57 EUR/month	30 Sept 2026	Visible unlimited mobile plan¹⁶Official · national market
Average monthly rent (whole dwelling)	1,648 EUR/month	31 Dec 2020	ACS 2020-2024 5-year table-based Summary File, tables B25065 (Aggregate Gross Rent) and B25063 (Gross Rent, units with cash rent)⁴Official
Median monthly rent	1,338 EUR/month	31 Dec 2020	ACS 2020-2024 5-year table-based Summary File, table B25064 (Median Gross Rent), place records³Official

Is Green Knoll a good place to live?

There is no universal answer. The profile scores below show who the available published evidence may suit; they are a decision aid, not a personal recommendation.

Try your profile

Remote worker39%strong on work, weak on safety · range 29–49%

Skilled employee46%strong on work, weak on safety · range 37–55%

Student38%strong on cost, weak on safety · range 27–49%

Family56%strong on family, weak on safety · range 45–67%

Retirement35%strong on air quality, weak on admin · range 22–48%

Worked out from these numbers

How international is the population?

19.9% of residents hold a foreign nationality — 1,315 of 6,594 people. This counts nationality, not place of birth, so long-settled residents who naturalised are not in it.

Work and income

Unemployment across cities in United StatesUnemployment in Green Knoll is 4.2%. Of 2,153 cities with data, 1,250 have unemployment of 0 to under 5%.

1,250

778

0–55–1010–1515–2020–2525–30

Green Knoll 4.2%

Unemployment rate (%)

Metric	Value	Period	Source
Median gross salary	5,920 EUR/month	31 Dec 2020	2024 American Community Survey 5-year detailed tables¹Official
Unemployment rate	4.23 %country median 4.6%	31 Dec 2024	Census Reporter (underlying U.S. Census ACS)⁶Official

What does a salary buy in Green Knoll?

Take-home pay after tax, minus rent and the everyday bills this city publishes. Each line names its source.

Left over each month€2,675of €4,404 take-home

Rent
Internet
Mobile
Left over

Line-by-line breakdown and sources

Each month	€
Take-home payOECD Taxing Wages 2025, single, no children. Includes central and local income tax and employee social contributions; euro amounts at the ECB average for 2026-08.	€4,404
Rentaverage rent of a whole dwelling · official · ACS 2020-2024 5-year table-based Summary File, tables B25065 (Aggregate Gross Rent) and B25063 (Gross Rent, units with cash rent) · 2020-12-31	− €1,648
Internet€60 · official · Verizon 300 Mbps home internet · 2026-09-30	− €60
Mobile plan€22 · official · Visible unlimited mobile plan · 2026-09-30	− €22
Other everyday billsnot published for this city: public transport pass, utilities	—
Left overbefore the bills this city does not publish	€2,675

Take-home pay for other salaries and households Compare with another city Check a job offer in Green Knoll Salary needed to live in Green Knoll

Public employment service

No exact public employment office is currently linked to Green Knoll. The verified national service may still offer online registration, job search or an official office finder.

Country-level information

American Job Centers — Public employment service

U.S. Department of Labor Employment and Training Administration

Job Search

Open official service

Open the United States service overview

Country-level service information is not treated as proof of a physical office in Green Knoll. Sources checked through 10 Aug 2026.

Healthcare

Metric	Value	Period	Source
Physicians per 100,000 residents	496.3 per 100,000	31 Dec 2023	Area Health Resources Files (AHRF), County 2024-2025 release⁵Official · county

Yes — migrants can receive medical care in Green Knoll when the national insurance or residence conditions are met.

Healthcare access follows the country-wide insurance rules; local capacity facts remain city data and are not used as proof of eligibility.

Open the official coverage guide

Country rule verified 2026-08-03.

Mobility and administration

Green Knoll's nearest airport was EWR, 39 km away and offered 153 direct destinations.

Metric	Value	Period	Source
Direct destinations from the nearest major airport	153 count	3 Aug 2026	OpenFlights⁸Official
Distance to the nearest major airport	39 km	3 Aug 2026	OurAirports⁹Official
Nearest major airport (IATA code)	EWR	3 Aug 2026	OurAirports⁹Official

Language courses and integration

No exact city-level course record is currently published for Green Knoll. These verified national programmes may still apply; use the official programme page to check local availability.

Country-level information

Adult Education and English Language Acquisition (AEFLA) — State Language Course

U.S. Department of Education

For adult learners, adult English-language learners.

EnglishIn Person, Online, HybridCost varies

Open official information

USCIS English and citizenship class finder — Civic Orientation

U.S. Citizenship and Immigration Services

For immigrants, future citizens.

EnglishIn Person, OnlineCost varies

Open official information

Open the full United States section

National programme information is not treated as proof of a course location in Green Knoll.

Find courses near Green Knoll

Climate and air quality

Green Knoll recorded annual PM2.5 of 7.2 µg/m³ at the end of 2024. Green Knoll's monthly mean temperatures were −1.7°C in January and 23.2°C in July.

Temperature through the yearAverage daytime high and night-time low, °C

0°

4°-7°

5°-7°

10°-3°

17°2°

22°8°

27°14°

30°17°

29°16°

25°12°

18°5°

12°0°

6°-4°

JFMAMJJASOND

Night-time low to daytime high

Rainfall through the yearAverage monthly precipitation, mm

104

101

108

119

108

112

JFMAMJJASOND

Air quality vs health guidelinesAnnual means against WHO 2021 guidelines and EU legal limits

Within WHO 2021 guidelineAbove WHO, within EU limitAbove EU legal limitCity annual mean · µg/m³

PM2.57.2WHO 5 · EU 25

City values from the published air-quality observations. WHO 2021 guidelines and EU limit values are published constants.

PM2.5 across cities in United StatesAnnual PM2.5 in Green Knoll is 7.2 µg/m³. Of 968 cities with data, 261 have annual PM2.5 of 6 to under 7 µg/m³.

135

261

252

124

1–22–33–44–55–66–77–88–99–1010–1111–1212–1313–1414–1515–16

Green Knoll 7.2

Annual PM2.5 (µg/m³)

Metric	Value	Period	Source
PM2.5 — annual mean	7.23 µg/m³	31 Dec 2024	U.S. EPA Air Quality System / AirData¹⁴Official · nearest-station reading
Average daytime high by month	Jan 3.72 · Feb 5.17 · Mar 9.72 · Apr 16.72 · May 22.06 · Jun 26.94 · Jul 29.72 · Aug 28.56 · Sep 24.83 · Oct 18 · Nov 11.94 · Dec 6.28 °C	31 Dec 1991	NOAA National Centers for Environmental Information⁷Official · nearest-station reading
Average night-time low by month	Jan -7 · Feb -6.94 · Mar -2.61 · Apr 2.39 · May 7.89 · Jun 13.5 · Jul 16.56 · Aug 15.56 · Sep 11.78 · Oct 5 · Nov -0.5 · Dec -4.22 °C	31 Dec 1991	NOAA National Centers for Environmental Information⁷Official · nearest-station reading
Average temperature by month	Jan -1.67 · Feb -0.889 · Mar 3.56 · Apr 9.56 · May 14.94 · Jun 20.22 · Jul 23.17 · Aug 22.06 · Sep 18.33 · Oct 11.5 · Nov 5.72 · Dec 1.06 °C	31 Dec 1991	NOAA National Centers for Environmental Information⁷Official · nearest-station reading
Average precipitation by month	Jan 90.17 · Feb 70.87 · Mar 104.4 · Apr 100.6 · May 87.38 · Jun 108 · Jul 118.9 · Aug 95 · Sep 108.2 · Oct 108.5 · Nov 81.28 · Dec 112.3 mm	31 Dec 1991	NOAA National Centers for Environmental Information⁷Official · nearest-station reading
PM2.5, highest monitored reading	19.4 µg/m³	31 Dec 2024	US EPA Air Quality System (AQS)¹⁴Official · nearest-station reading
PM2.5, annual mean	7.16 µg/m³	31 Dec 2024	US EPA Air Quality System (AQS)¹⁴Official · nearest-station reading

Similar climate. In United States: Springfield ±0.8 °C. Elsewhere: Chatham-Kent (Canada) ±1.9 °C, Cottbus (Germany) ±2.4 °C, Hoyerswerda (Germany) ±2.6 °C, Traunreut (Germany) ±2.6 °C, Traunstein (Germany) ±2.6 °C. Twenty closest, compared month by month

Monthly highs and lows against the 1991–2020 station normals of the nearest station; ± is the average monthly difference.

Population and city profile

An area of 12 km² comprised Green Knoll at the end of 2025. Green Knoll's population density measured 565.5 people per km² at the end of 2024.

Who lives hereResidents by nationality, % of population

By nationality

National passport80.1%
Foreign residents19.9%

Calculated from the population and foreign-resident facts on this page.

Metric	Value	Period	Source
City area	12 km²	31 Dec 2025	U.S. Census Bureau (TIGERweb ArcGIS REST service)¹⁰Official
Foreign-resident share	19.37 %	31 Dec 2024	Census Reporter (underlying U.S. Census ACS)⁶Official
Foreign residents	1,315 people	31 Dec 2024	Census Reporter (underlying U.S. Census ACS)⁶Official
Population density	565.5 people/km²	31 Dec 2024	Census Reporter (underlying U.S. Census ACS)⁶Official
Population	6,594 people	31 Dec 2020	U.S. Census Bureau, TIGERweb Census 2020¹³Official

Alternatives for people set on Green Knoll

Three places for the three reasons people leave a city on the shortlist: stay in the region, stay in the country, or keep the budget and change the country. A percentage appears only where both cities publish that metric from the same source, period and grain. Distances are straight lines — travel times are not collected yet.

Martinsville as a Green Knoll alternative in the same region

3 km away, better on 3 of 5 metrics measured the same way, worse on 1.

Median gross pay, city: €7,309 Martinsville vs €5,920 Green Knoll+23%
Unemployment: 2.8% Martinsville vs 4.2% Green Knoll−35%
Residents: 12,147 Martinsville vs 6,594 Green Knoll+84%
Annual PM2.5: 5.6 µg/m³ Martinsville vs 7.2 µg/m³ Green Knoll−22%
Foreign residents: 18.7% Martinsville vs 19.4% Green Knoll−3%

Full comparison More about Martinsville

North Bethesda as a Green Knoll alternative in the same country

A move, not a commute, at 276 km, better on 4 of 5 metrics measured the same way, worse on 0.

Residents: 50,094 North Bethesda vs 6,594 Green Knoll+660%
Foreign residents: 34.1% North Bethesda vs 19.4% Green Knoll+76%
Unemployment: 3.6% North Bethesda vs 4.2% Green Knoll−14%
Annual PM2.5: 5.9 µg/m³ North Bethesda vs 7.2 µg/m³ Green Knoll−19%
Median gross pay, city: €6,119 North Bethesda vs €5,920 Green Knoll+3%

Full comparison More about North Bethesda

Cities near Green Knoll

Published cities within 25 km, nearest first. Distances are straight-line.

Martinsville 3.3 km away

Rent: 2,006 EUR/monthMedian monthly rent · 2020-12-31
Salary: 7,309 EUR/monthMedian gross salary · 2020-12-31

Raritan borough 4.3 km away

Salary: 3,975 EUR/monthMedian gross salary · 2020-12-31

Raritan 4.5 km away

Rent: 1,951 EUR/monthMedian monthly rent · 2020-12-31
Salary: 3,975 EUR/monthMedian gross salary · 2020-12-31

Finderne 5.6 km away

Rent: 1,953 EUR/monthMedian monthly rent · 2020-12-31
Salary: 5,053 EUR/monthMedian gross salary · 2020-12-31

Bradley Gardens 5.8 km away

Rent: 2,467 EUR/monthMedian monthly rent · 2020-12-31
Salary: 6,557 EUR/monthMedian gross salary · 2020-12-31

Manville 7.3 km away

Rent: 1,704 EUR/monthMedian monthly rent · 2020-12-31
Salary: 3,917 EUR/monthMedian gross salary · 2020-12-31

Bound Brook 7.6 km away

Rent: 1,823 EUR/monthMedian monthly rent · 2020-12-31
Salary: 3,140 EUR/monthMedian gross salary · 2020-12-31

Alternative cities in United States

Other cities in United States to compare with Green Knoll, nearest in population first.

All United States cities

Swarthmore6,596 residents Brier6,597 residents Litchfield6,598 residents Pigeon Forge6,598 residents Henderson6,590 residents Morris Plains6,590 residents

How does Green Knoll compare?

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Put Green Knoll's key facts on your site — a card with this page's figures and a link back, free under CC BY 4.0.

Common questions

Answered from the published values on this page, each with its source and date.

What is the unemployment rate in Green Knoll?

The unemployment rate is 4.23 %. Source: Census Reporter (underlying U.S. Census ACS).

Is the air quality good in Green Knoll?

The annual PM2.5 mean is 7.23 µg/m³. The WHO 2021 guideline is 5 µg/m³ and the EU limit value is 25 µg/m³, so this reading is above the WHO guideline but within the EU limit. Source: U.S. EPA Air Quality System / AirData.

How many people live in Green Knoll?

The published population is 6,594 people. Source: U.S. Census Bureau, TIGERweb Census 2020.

How many foreign residents live in Green Knoll?

1,315 residents hold a foreign nationality. Source: Census Reporter (underlying U.S. Census ACS).

Is Green Knoll a good place to live?

Green Knoll may suit different people for different reasons. The page's profile scores compare published cost, work, housing, safety, healthcare and other available factors; they are a decision aid, not a universal recommendation.

Which cities are near Green Knoll?

Martinsville, Somerville borough, Raritan borough, Raritan, Finderne are near Green Knoll. Typed relationship labels are shown where published; other rows use straight-line distance from admitted coordinates.

Cite this page

Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.

APA citation

ImmigrationDB. (2026, October 16). Green Knoll, United States: population, rent, salary, jobs [ImmigrationDB compilation; version e77c0ee2d0374f816c719cf64604459b]. ImmigrationDB. https://immigrationdb.com/cities/us/green-knoll/ Retrieved 2026-10-16. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/

BibTeX citation

@misc{immigrationdb_immigrationdb_green-knoll-united-states-population-rent-salary-jobs_59c5600d49ed,
  author = {ImmigrationDB},
  title = {Green Knoll, United States: population, rent, salary, jobs},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-10-16},
  version = {e77c0ee2d0374f816c719cf64604459b},
  url = {https://immigrationdb.com/cities/us/green-knoll/},
  note = {Retrieved 2026-10-16. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}

Markdown citation

[Green Knoll, United States: population, rent, salary, jobs](https://immigrationdb.com/cities/us/green-knoll/) — ImmigrationDB; ImmigrationDB; version e77c0ee2d0374f816c719cf64604459b; retrieved 2026-10-16; built 2026-10-16.

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.

Sources

JSON Markdown

2024 American Community Survey 5-year detailed tables api.census.gov · checked 2026-10-04
ACS 2020-2024 5-year table-based Summary File, table B20002 (Median Earnings in the Past 12 Months (in 2024 inflation-adjusted dollars) by Sex for the Population 16 Years and Over with Earnings) www2.census.gov · checked 2026-09-19
ACS 2020-2024 5-year table-based Summary File, table B25064 (Median Gross Rent), place records www2.census.gov · checked 2026-09-18
ACS 2020-2024 5-year table-based Summary File, tables B25065 (Aggregate Gross Rent) and B25063 (Gross Rent, units with cash rent) www2.census.gov · checked 2026-09-19
Area Health Resources Files (AHRF), County 2024-2025 release data.hrsa.gov · checked 2026-10-04
Census Reporter (underlying U.S. Census ACS) api.censusreporter.org · checked 2026-08-03
NOAA National Centers for Environmental Information ncei.noaa.gov · checked 2026-08-05
OpenFlights raw.githubusercontent.com · checked 2026-08-03
OurAirports davidmegginson.github.io · checked 2026-08-03
U.S. Census Bureau (TIGERweb ArcGIS REST service) tigerweb.geo.census.gov · checked 2026-08-03

Show 12 more sources

U.S. Census Bureau TIGERweb Places (layer 4 incorporated places, layer 5 CDPs; identical query) tigerweb.geo.census.gov · checked 2026-09-11
U.S. Census Bureau, American Community Survey api.census.gov · checked 2026-08-07
U.S. Census Bureau, TIGERweb Census 2020 tigerweb.geo.census.gov · checked 2026-08-05
U.S. EPA Air Quality System / AirData aqs.epa.gov · checked 2026-08-05
Verizon 300 Mbps home internet verizon.com · checked 2026-09-15
Visible unlimited mobile plan visible.com · checked 2026-09-15
Coordinate identity evidence wikidata.org · checked 2026-09-06
Coordinate identity evidence wikidata.org · checked 2026-09-06
Coordinate identity evidence wikidata.org · checked 2026-09-06
Coordinate identity evidence wikidata.org · checked 2026-09-06
Wikidata P1566 (GeoNames ID) exact join -> P625 (coordinate location) wikidata.org · checked 2026-09-11
Wikidata P1566 (GeoNames ID) exact join -> P625 (coordinate location) wikidata.org · checked 2026-09-11

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