Columbia Flag

Columbia

County:
Warren County
County Seat:
No
Area (mi²):
0.1
State:
New Jersey

Columbia is a CDP located in Warren County, New Jersey. Columbia has a 2026 population of 134. Columbia is currently declining at a rate of -4.29% 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 Columbia is $74,125 with a poverty rate of 9.49%. The median age in Columbia is 55.5 years: 55.3 years for males, and 55.8 years for females. For every 100 females there are 171.9 males.

134
Total Population
1,339
Density (mi²)
-6 -4.29%
Growth

Columbia Population

Columbia Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026134-6-4.29%
2025140-6-4.11%

Median Age

Overall: 55.5 years
Female: 55.8 years
Male: 55.3 years

Columbia Adults

There are 135 adults, (38 of whom are seniors) in Columbia.

Sex Ratio

Female: 64 (36.8%)
Male: 110 (63.2%)

Demographics

The racial composition of Columbia includes 96.55% White, 3.45% other race, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White16896.55%
Other race63.45%
Race
Population ↓
Percentage (of total)
Other race63.45%
Race
Population ↓
Percentage (of total)
White16896.55%

Columbia Marital Status

Economics and Income Statistics

Columbia 's average per capita income is $51,328. Household income levels show a median of $74,125. The poverty rate stands at 9.49%.

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
Households$74,125$84,669
Families$74,125$84,669
Married Families$72,750-
Non Families--

$51,328

Average Income

$74,125

Median Household Income

9.49%

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)