Interlaken Flag

Interlaken

County:
Monmouth County
County Seat:
No
Area (mi²):
0.331
State:
New Jersey

Interlaken is a borough located in Monmouth County, New Jersey. Interlaken has a 2026 population of 823. Interlaken is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 823 in 2020.

The median household income in Interlaken is $199,167 with a poverty rate of 1.38%. The median age in Interlaken is 50.7 years: 53 years for males, and 50.4 years for females. For every 100 females there are 96.9 males.

823
Total Population
2,484
Density (mi²)

Interlaken Population

Interlaken Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202682300%
202582300%
202482330.37%
2023820-2-0.24%
2022822-4-0.48%
202182630.36%
2020823-2-0.24%
2019790-2-0.25%
2018792-4-0.5%
2017796-2-0.25%
2016798-5-0.62%
2015803-4-0.5%
2014807-5-0.62%
2013812-2-0.25%
2012814-5-0.61%
2011819-1-0.12%
2010819-1-0.12%

Median Age

Overall: 50.7 years
Female: 50.4 years
Male: 53 years

Interlaken Adults

There are 747 adults, (218 of whom are seniors) in Interlaken.

Sex Ratio

Female: 477 (50.8%)
Male: 462 (49.2%)

Demographics

The racial composition of Interlaken includes 93.5% White, and smaller percentages for Asian, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White87893.5%
Two or more races525.54%
Asian60.64%
Other race30.32%
Race
Population ↓
Percentage (of total)
Two or more races272.88%
White30.32%
Other race30.32%
Race
Population ↓
Percentage (of total)
White87593.18%
Two or more races252.66%
Asian60.64%

Interlaken Marital Status

Economics and Income Statistics

Interlaken 's average per capita income is $100,298. Household income levels show a median of $199,167. The poverty rate stands at 1.38%.

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$231,250-
Families$216,979$272,241
Households$199,167$242,635
Non Families$114,375$153,594

$100,298

Average Income

$199,167

Median Household Income

1.38%

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)