Interlaken borough is located in Monmouth County New Jersey. Interlaken borough has a 2024 population of 813. Interlaken borough is currently declining at a rate of -0.49% annually and its population has decreased by -1.22% since the most recent census, which recorded a population of 823 in 2020.
The average household income in Interlaken borough is $186,688 with a poverty rate of 3.41%. The median age in Interlaken borough is 57.9 years: 58 years for males, and 57.8 years for females.
According to the most recent ACS, the racial composition of Interlaken borough was:
White
Two or more races
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Other race
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 338 | 2.25 | 94.7 | 5.3 |
| Married | 211 | 2.75 | 96.7 | 3.3 |
| Non Family | 107 | 1.21 | 89.7 | 10.3 |
| Female | 17 | 2.35 | 100 | 0 |
| Male | 3 | 4 | 100 | 0 |
2.71
Average Family Size
2.25
Average Household Size
94.7%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among asian people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 100%.
All
Male
Female
$92,656
Average Earnings
$104,643
Average Male
$74,688
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
96.68% of Interlaken borough residents speak only English, while 3.32% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 3.05% of the population.
rate
3.41%
Overall Poverty Rate
3.16%
Male Poverty Rate
3.62%
Female Poverty Rate
The race most likely to be in poverty in Interlaken borough is White, with 3.53% below the poverty level.
The race least likely to be in poverty in Interlaken borough is White, with 3.53% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 2.72%, and for those that did not work, the poverty rate was 6.98%.
Married
Widowed
Divorced
Separated
NeverMarried
65.5%
Overall Marriage Rate
76.1%
Male Marriage Rate
56.3%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
0%
Veteran Poverty Rate
28.26%
Veteran Disability Rate
LaborForceParticipation
53.9%
Labor Force Participation
51.7%
Employment Rate
4.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
63.25%
Born in Interlaken borough
96.46%
Native Born
3.54%
Foreign Born
0%
Non Citizen
3.54%
Naturalized
96.46% of Interlaken borough residents were born in the United States, with 63.25% having been born in New Jersey. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 793 | -4 | -0.5% |
| 2028 | 797 | -4 | -0.5% |
| 2027 | 801 | -4 | -0.5% |
| 2026 | 805 | -4 | -0.49% |
| 2025 | 809 | -4 | -0.49% |
| 2024 | 813 | -4 | -0.49% |
| 2023 | 817 | -4 | -0.49% |
| 2022 | 821 | -5 | -0.61% |
| 2021 | 826 | 3 | 0.36% |
| 2020 | 823 | 33 | 4.18% |
| 2019 | 790 | -2 | -0.25% |
| 2018 | 792 | -4 | -0.5% |
| 2017 | 796 | -2 | -0.25% |
| 2016 | 798 | -5 | -0.62% |
| 2015 | 803 | -4 | -0.5% |
| 2014 | 807 | -5 | -0.62% |
| 2013 | 812 | -2 | -0.25% |
| 2012 | 814 | -5 | -0.61% |
| 2011 | 819 | 0 | 0% |
| 2010 | 819 | 0 | 0% |