Cabin John, MD demographics:
population, income, and more

Total population
2,179
4.0% year-over-year change
Median household income
$250,001/yr
12.4% year-over-year change
Housing units
956
3.2% year-over-year change

Cabin John population

How many people live in Cabin John

Cabin John is home to 2,179 residents, according to the most recent Census data. Gender-wise, 43.8% of Cabin John locals are male, and 56.2% are female.

Total population
2,179
4.0% year-over-year change
Gender ratio
Male
43.8%
955
Female
56.2%
1,224
Value Percent YoY change
Male 955 43.8% 1.1%
Female 1,224 56.2% 6.3%
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 Cabin John is 53, with the population distributed as follows: about 14% are children under 15, then 10.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 15.3% of the population, while another 32.3% fall into the 45 to 64 bracket. Finally, around 27.4% are 65 or older.

Median age
53.3
Age breakdown
Under 15
14%
15 to 24
10.9%
25 to 44
15.3%
45 to 64
32.3%
Over 65
27.4%
Value Percent YoY change
Under 15 305 14% -27.0%
15 to 24 238 10.9% 80.3%
25 to 44 334 15.3% -17.7%
45 to 64 704 32.3% 21.6%
Over 65 598 27.4% 6.6%
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 Cabin John, 79.6% of the population are US-born citizens, while 17.2% have gained naturalized citizenship. At the same time, 3.2% of residents are non-citizens. As for race, 68.5% of locals are Caucasian, 4.8% are African American and 8.9% have Asian roots. There’s also a share of 13.4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
79.6%
Non-U.S.-born citizens
17.2%
Non-citizens
3.2%
Value Percent YoY change
U.S.-born citizens 1,735 79.6% 9.3%
Non-U.S.-born citizens 375 17.2% -18.5%
Non-citizens 69 3.2% 43.8%
Racial breakdown
White
68.5%
Black or African American
4.8%
American Indian and Alaska Native
0.1%
Asian
8.9%
Native Hawaiian and other Pacific Islander
0%
Two or more races
13.4%
Other
4.3%
Value Percent
White 1,493 68.5%
Black or African American 104 4.8%
American Indian and Alaska Native 2 0.1%
Asian 193 8.9%
Two or more races 293 13.4%
Other 94 4.3%

Households in Cabin John

A peek inside Cabin John households

Cabin John has 874 households, with an average of 2 members in each. Of these, 71% are families, while the remaining 29% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
874
3.5% year-over-year change
Average people per household
2
Non-family households
253
Family households
621
Value Percent YoY change
Non-family households 253 29% -1.9%
Family households 621 71% 6.0%
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 Cabin John

The housing landscape of Cabin John

Cabin John's housing consists of 956 units, with 91.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.3% and offer a more compact, shared living style.

Housing units
956
3.2% year-over-year change
Housing types
Value Percent
1 unit, detached 877 91.7%
1 unit, attached 79 8.3%
Homes built since 2020
0
% year-over-year change

The age of buildings in Cabin John

In Cabin John, the median construction year is 1977. About 5.3% of homes were built before the 1940s, with another 5.9% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 51 5.3% 30.8%
Built between 1940 and 1949 56 5.9% 16.7%
Built between 1950 and 1959 38 4% -48.6%
Built between 1960 and 1969 105 11% -18.6%
Built between 1970 and 1979 349 36.5% 23.3%
Built between 1980 and 1989 179 18.7% 16.2%
Built between 1990 and 1999 23 2.4% -23.3%
Built between 2000 and 2009 16 1.7% -46.7%
Built between 2010 and 2019 139 14.5% 0.0%
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.

Cabin John occupancy rates

Out of the 874 occupied housing units in Cabin John, 95.1% are owner-occupied, while 4.9% are lived in by tenants. Meanwhile, 8.6% of all homes on the local market sit vacant.

Occupied housing units
874
3.5% year-over-year change
Occupancy breakdown
Renter occupied
43
Owner occupied
831
Value Percent YoY
change
Renter occupied 43 4.9% 22.9%
Owner occupied 831 95.1% 2.7%
Unoccupied housing units
8.6%
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.

Cabin John housing costs

Housing costs in Cabin John come to a median of $3,785 per month, while tenants specifically pay a median gross rent of $3,501.

Median housing costs per month
$3,785/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 Cabin John
$3,501/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 Cabin John

Cabin John education at a glance

About 13.9% of the population in Cabin John went to high school, while 6.5% pursued college studies. Another earned an associate degree and 22% hold a bachelor’s. Meanwhile, 57.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 2 0.1% 0.0%
High school diploma 250 13.9% 64.5%
College diploma 118 6.5% 14.6%
Bachelor's degree 396 22% -5.9%
Graduate degree 1,037 57.5% 8.6%
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 Cabin John

How much people earn in Cabin John

The average annual household income in Cabin John was $393,737 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +16.4% change from the previous year. At the same time, the median income stood at $250,001, reflecting a +12.4% shift over the same period.

Average household income in Cabin John
$393,737/year
16.4% year-over-year change
Median household income in Cabin John
$250,001/year
12.4% year-over-year change

Cabin John income by age

In Cabin John, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $250,001. Those with someone between 45 and 64 in charge, often well established professionally, earn $250,001 overall. Overall, 99.2% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $250,001 0.0%
45 - 64 $250,001 0.0%
Over 65 $188,438 4.5%
Above poverty level
2,162
Below poverty level
17
Value Percent YoY
change
Above poverty level 2,162 99.2% 4.0%
Below poverty level 17 0.8% 750.0%

Employment in Cabin John

Workforce and job types in Cabin John

The job market in Cabin John is powered by 1,133 working residents, spread across a range of industries and roles. 96.8% of the working population are employed in professional or administrative positions, while 3.2% are in hands-on or service-based jobs. Also, 18.8% run their own businesses, 43.1% are employed by private companies, and 24.8% work in the public sector.

Workforce demographics

Working population
1,133
14.6% year-over-year change
White collar
1,097
Blue collar
36
Value Percent YoY change
White collar 1,097 96.8% 15.8%
Blue collar 36 3.2% -14.3%
Employer type
Self employees
18.8%
Private companies
43.1%
Governmental workers
24.8%
Not for profit companies
13.3%
Value Percent YoY change
Self employees 213 18.8% 51.1%
Private companies 488 43.1% 14.0%
Governmental workers 281 24.8% 4.1%
Not for profit companies 151 13.3% 0.7%

Transportation in Cabin John

How people get around in Cabin John

Commuting methods vary: 59.8% of residents travel by personal vehicle and 3.1% 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 676 59.8% 7.5%
Subway or elevated 11 1% N/A
Walk 35 3.1% N/A
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.

What is the median and average household income in Cabin John by zipcode?

Zipcode Population Number of households Median income Average income
20818 1,539 593 $245,982 $404,658

Explore more communities

FAQs about Cabin John demographics 

What is the total population of Cabin John?

Cabin John has a total population of 2,179 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 +4.0% compared to a year ago.

What is the gender ratio in Cabin John?

The gender ratio in Cabin John is as follows:
  • 43.8% males (955 residents)
  • 56.2% females (1,224 residents)

What is the median age in Cabin John?

The median age in Cabin John is 53.3.

What is the age distribution of the population in Cabin John?

The age distribution in Cabin John is as follows:
  • Under 15: 14% (305 residents)
  • Ages 15-24: 10.9% (238 residents)
  • Ages 25-44: 15.3% (334 residents)
  • Ages 45-64: 32.3% (704 residents)
  • Over 65: 27.4% (598 residents)

What is the racial and ethnic makeup of Cabin John?

The racial and ethnic makeup of Cabin John is as follows:
  • White: 68.5% (1,493 residents)
  • Black or African American: 4.8% (104 residents)
  • American Indian and Alaska Native: 0.1% (2 residents)
  • Asian: 8.9% (193 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 13.4% (293 residents)
  • Other: 4.3% (94 residents)

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

U.S.-born citizens represent 79.6% of the population in Cabin John.

How many housing units are there in Cabin John?

There are 956 housing units in Cabin John, reflecting a +3.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Cabin John has a total of 874 households, with an average of 2 people in each.

What is the median household income in Cabin John?

Cabin John has a median household income of $250,001, representing a +12.4% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Cabin John?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 96.8% (1,097 residents)
  • Blue-collar workers: 3.2% (36 residents)

Places of employment:
  • Self-employed: 18.8% (213 residents)
  • Private companies: 43.1% (488 residents)
  • Governmental workers: 24.8% (281 residents)
  • Not-for-profit companies: 13.3% (151 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