Mountain Lake Flag

Mountain Lake

County Seat:
No
Area (mi²):
1.126

Mountain Lake is a CDPlocated in Warren County, New Jersey. Mountain Lake has a 2026 population of 564. Mountain Lake is currently declining at a rate of -0.18% annually and its population has decreased by -0.18% since the most recent census, which recorded a population of 565 in 2020.

The median household income in Mountain Lake is $108,056 with a poverty rate of 8.54%.The median age in Mountain Lake is 55.4 years: 57.4 years for males, and 52.4 years for females. For every 100 females there are 95.9 males.

564
Total Population
501
Density (mi²)
-1 -0.18%
Growth

Mountain Lake Population

Mountain Lake Population

Year↓
Population
Growth
Annual Change
2026564-1-0.18%
202556500%
2023566234.24%
2022543-28-4.9%
202157161.06%
20205659419.96%
2019471-39-7.65%
2018510-43-7.78%
2017553-45-7.53%
2016598193.28%
2015579-97-14.35%
201467650.75%
2013671-22-3.17%
2012693-62-8.21%
201175518031.3%

Median Age

Overall:55.4 years
Female:52.4 years
Male:57.4 years

Mountain Lake Adults

There are 538 adults, (90 of whom are seniors) in Mountain Lake.

Sex Ratio

Female: 293 (51%)
Male: 281 (49%)

Demographics

The racial composition of Mountain Lake includes 87.11% White, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population↓
Percentage (of total)
White50087.11%
Two or more races7012.2%
Asian40.7%
Race
Population↓
Percentage (of total)
Two or more races6411.15%
White71.22%
Race
Population↓
Percentage (of total)
White49385.89%
Two or more races61.05%
Asian40.7%

Mountain Lake Marital Status

Economics and Income Statistics

Mountain Lake's average per capita income is $59,025. Household income levels show a median of $108,056. The poverty rate stands at 8.54%.

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
Married Families$124,107-
Families$123,214$154,484
Households$108,056$139,951
Non Families$75,357$102,337

$59,025

Average Income

$108,056

Median Household Income

8.54%

Poverty Rate

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)