Interlaken, CA demographics:
population, income, and more

Total population
8,068
-1.5% year-over-year change
Median household income
$109,150/yr
-1.7% year-over-year change
Housing units
2,001
-4.8% year-over-year change

Interlaken population

How many people live in Interlaken

Interlaken is home to 8,068 residents, according to the most recent Census data. Gender-wise, 54% of Interlaken locals are male, and 46% are female.

Total population
8,068
-1.5% year-over-year change
Gender ratio
Male
54%
4,357
Female
46%
3,711
Value Percent YoY change
Male 4,357 54% 4.6%
Female 3,711 46% -7.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Interlaken is 34, with the population distributed as follows: about 26.6% are children under 15, then 12% are in the 15 to 24 age group. Adults between 25 and 44 make up 25% of the population, while another 21.5% fall into the 45 to 64 bracket. Finally, around 14.9% are 65 or older.

Median age
34.3
Age breakdown
Under 15
26.6%
15 to 24
12%
25 to 44
25%
45 to 64
21.5%
Over 65
14.9%
Value Percent YoY change
Under 15 2,147 26.6% 12.8%
15 to 24 970 12% -24.5%
25 to 44 2,017 25% 4.5%
45 to 64 1,735 21.5% -10.3%
Over 65 1,199 14.9% 5.4%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Interlaken, 67.4% of the population are US-born citizens, while 15.4% have gained naturalized citizenship. At the same time, 17.2% of residents are non-citizens. As for race, 24.2% of locals are Caucasian, 0.4% are African American and 1.2% have Asian roots. There’s also a share of 29.5% that includes residents with two or more races.

Citizenship
U.S.-born citizens
67.4%
Non-U.S.-born citizens
15.4%
Non-citizens
17.2%
Value Percent YoY change
U.S.-born citizens 5,438 67.4% -0.7%
Non-U.S.-born citizens 1,242 15.4% -0.2%
Non-citizens 1,388 17.2% -5.6%
Racial breakdown
White
24.2%
Black or African American
0.4%
American Indian and Alaska Native
0.5%
Asian
1.2%
Native Hawaiian and other Pacific Islander
0%
Two or more races
29.5%
Other
44.2%
Value Percent
White 1,955 24.2%
Black or African American 33 0.4%
American Indian and Alaska Native 39 0.5%
Asian 100 1.2%
Two or more races 2,378 29.5%
Other 3,563 44.2%

Households in Interlaken

A peek inside Interlaken households

Interlaken has 1,976 households, with an average of 4 members in each. Of these, 86.6% are families, while the remaining 13.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
1,976
-5.5% year-over-year change
Average people per household
4
Non-family households
264
Family households
1,712
Value Percent YoY change
Non-family households 264 13.4% 1.1%
Family households 1,712 86.6% -6.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Interlaken

The housing landscape of Interlaken

Interlaken's housing consists of 2,001 units, with 88.8% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.7% and offer a more compact, shared living style.

Housing units
2,001
-4.8% year-over-year change
Housing types
Value Percent
1 unit, detached 1,777 88.8%
1 unit, attached 54 2.7%
2 units 57 2.8%
3 or 4 units 101 5%
20 to 49 units 12 0.6%
Homes built since 2020
5
% year-over-year change

The age of buildings in Interlaken

In Interlaken, the median construction year is 1970. About 11% of homes were built before the 1940s, with another 7.6% going up by 1949. Most development happened in the second half of the 20th century. Then, 5.2% of homes were added from 2000 to 2009, 3% between 2010 and 2019, and 0.2% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 220 11% 35.8%
Built between 1940 and 1949 151 7.6% 11.0%
Built between 1950 and 1959 281 14% 27.7%
Built between 1960 and 1969 340 17% -33.7%
Built between 1970 and 1979 417 20.8% -3.5%
Built between 1980 and 1989 224 11.2% -10.8%
Built between 1990 and 1999 200 10% 28.2%
Built between 2000 and 2009 103 5.2% -18.2%
Built between 2010 and 2019 60 3% -43.9%
Built in 2020 or later 5 0.2% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Interlaken occupancy rates

Out of the 1,976 occupied housing units in Interlaken, 66.4% are owner-occupied, while 33.6% are lived in by tenants. Meanwhile, 1.2% of all homes on the local market sit vacant.

Occupied housing units
1,976
-5.5% year-over-year change
Occupancy breakdown
Renter occupied
663
Owner occupied
1,313
Value Percent YoY
change
Renter occupied 663 33.6% -0.5%
Owner occupied 1,313 66.4% -7.9%
Unoccupied housing units
1.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Interlaken housing costs

Housing costs in Interlaken come to a median of $2,226 per month, while tenants specifically pay a median gross rent of $1,941.

Median housing costs per month
$2,226/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Interlaken
$1,941/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Interlaken

Interlaken education at a glance

About 36.2% of the population in Interlaken went to high school, while 26% pursued college studies. Another 5.7% earned an associate degree and 11% hold a bachelor’s. Meanwhile, 4.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 950 16.8% 11.0%
High school diploma 2,040 36.2% -3.5%
College diploma 1,468 26% -6.3%
Associate degree 320 5.7% -27.6%
Bachelor's degree 618 11% -11.7%
Graduate degree 244 4.3% -6.9%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Interlaken

How much people earn in Interlaken

The average annual household income in Interlaken was $130,144 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -8.5% change from the previous year. At the same time, the median income stood at $109,150, reflecting a -1.7% shift over the same period.

Average household income in Interlaken
$130,144/year
-8.5% year-over-year change
Median household income in Interlaken
$109,150/year
-1.7% year-over-year change

Interlaken income by age

In Interlaken, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $93,750. Those with someone between 45 and 64 in charge, often well established professionally, earn $128,977 overall. Overall, 85.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $93,750 N/A
45 - 64 $128,977 -3.1%
Over 65 $107,725 21.3%
Above poverty level
6,607
Below poverty level
1,153
Value Percent YoY
change
Above poverty level 6,607 85.1% -9.6%
Below poverty level 1,153 14.9% 86.9%

Average renter income in Interlaken

To get a better sense of what renters earn on average in Interlaken, their median household income was $54,172 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 43%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$54,172
Rent-to-income ratio
43%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Interlaken

Workforce and job types in Interlaken

The job market in Interlaken is powered by 3,363 working residents, spread across a range of industries and roles. 59.7% of the working population are employed in professional or administrative positions, while 40.3% are in hands-on or service-based jobs. Also, 18.7% run their own businesses, 60% are employed by private companies, and 13.1% work in the public sector.

Workforce demographics

Working population
3,363
-11.3% year-over-year change
White collar
2,009
Blue collar
1,354
Value Percent YoY change
White collar 2,009 59.7% -16.7%
Blue collar 1,354 40.3% -1.8%
Employer type
Self employees
18.7%
Private companies
60%
Governmental workers
13.1%
Not for profit companies
8.2%
Value Percent YoY change
Self employees 629 18.7% 22.4%
Private companies 2,017 60% -16.3%
Governmental workers 441 13.1% -13.9%
Not for profit companies 276 8.2% -22.2%
Unemployment rate
5.8%
21.3% year-over-year change

Available workforce

The unemployment rate in Interlaken stands at 5.8%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Interlaken

How people get around in Interlaken

Commuting methods vary: 80.5% of residents travel by personal vehicle and 0.3% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 2,531 80.5% -17.1%
Bus or trolleybus 53 1.7% -22.1%
Railroad 5 0.2% 0.0%
Motorcycle 21 0.7% 90.9%
Walk 9 0.3% -40.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

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FAQs about Interlaken demographics 

What is the total population of Interlaken?

Interlaken has a total population of 8,068 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -1.5% compared to a year ago.

What is the gender ratio in Interlaken?

The gender ratio in Interlaken is as follows:
  • 54% males (4,357 residents)
  • 46% females (3,711 residents)

What is the median age in Interlaken?

The median age in Interlaken is 34.3.

What is the age distribution of the population in Interlaken?

The age distribution in Interlaken is as follows:
  • Under 15: 26.6% (2,147 residents)
  • Ages 15-24: 12% (970 residents)
  • Ages 25-44: 25% (2,017 residents)
  • Ages 45-64: 21.5% (1,735 residents)
  • Over 65: 14.9% (1,199 residents)

What is the racial and ethnic makeup of Interlaken?

The racial and ethnic makeup of Interlaken is as follows:
  • White: 24.2% (1,955 residents)
  • Black or African American: 0.4% (33 residents)
  • American Indian and Alaska Native: 0.5% (39 residents)
  • Asian: 1.2% (100 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 29.5% (2,378 residents)
  • Other: 44.2% (3,563 residents)

What percentage of the population in Interlaken are U.S.-born citizens?

U.S.-born citizens represent 67.4% of the population in Interlaken.

How many housing units are there in Interlaken?

There are 2,001 housing units in Interlaken, reflecting a -4.8% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Interlaken and what is the average household size?

Interlaken has a total of 1,976 households, with an average of 4 people in each.

What is the median household income in Interlaken?

Interlaken has a median household income of $109,150, representing a -1.7% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Interlaken?

The employment rate is 94.2% in Interlaken, with a workforce of 3,363 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 59.7% (2,009 residents)
  • Blue-collar workers: 40.3% (1,354 residents)

Places of employment:
  • Self-employed: 18.7% (629 residents)
  • Private companies: 60% (2,017 residents)
  • Governmental workers: 13.1% (441 residents)
  • Not-for-profit companies: 8.2% (276 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025