ZIP Code 20818
About Cabin John
Cabin John is a census-designated place and unincorporated area in Montgomery County, Maryland, United States. As of the 2020 census, it had a population of 2,459. Overlooking the Potomac River, it is a suburb of Washington, D.C.
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Area Profile
US Census (ACS 5-year · Gazetteer)
1,602
population
$221,392
median household income
1,726
people / sq mi
$1,273,300
median home value
49.0
median age
658
housing units
595
households
0.9
land area (sq mi)
Key places in 20818
- Lock 10 attraction
- Lock 8 attraction
- Lock 9 attraction
- Carderock Springs Neighborhood Conservation Area nature