Greenwich Flag

Greenwich

County Seat:
No
Area (mi²):
0.839
State:
New Jersey

Greenwich is a CDP located in Cumberland County, New Jersey. Greenwich has a 2026 population of 198. Greenwich is currently growing at a rate of 6.45% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Greenwich is $125,000 with a poverty rate of 0%. The median age in Greenwich is 40.3 years: 38.5 years for males, and 49.4 years for females. For every 100 females there are 177.8 males.

198
Total Population
236
Density (mi²)
12 6.45%
Growth

Greenwich Population

Greenwich Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026198126.45%
2025186137.51%

Median Age

Overall: 40.3 years
Female: 49.4 years
Male: 38.5 years

Greenwich Adults

There are 134 adults, (34 of whom are seniors) in Greenwich.

Sex Ratio

Female: 63 (36%)
Male: 112 (64%)

Demographics

The racial composition of Greenwich includes 98.29% White, and smaller percentages for Two or more races, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White17298.29%
Two or more races21.14%
Native American10.57%
Race
Population ↓
Percentage (of total)
White31.71%
Two or more races10.57%
Race
Population ↓
Percentage (of total)
White16996.57%
Two or more races10.57%
Native American10.57%

Greenwich Marital Status

Economics and Income Statistics

Greenwich 's average per capita income is $63,125. Household income levels show a median of $125,000. The poverty rate stands at 0%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$142,708$150,049
Married Families$142,708-
Households$125,000$128,295
Non Families$61,250$74,484

$63,125

Average Income

$125,000

Median Household Income

0%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)