ZIP code 20818: Cabin John, MD
20818 is a ZIP code in Cabin John, Maryland, mainly in Montgomery County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metro area. About 1,539 people live here.
- Population
- 1,539
- Median household income
- $245,982
- Typical home value
- $1,240,000+0.8% in 12 months
- Median rent
- —gross, per month
- Median age
- 52.7
- Homeowners
- 95.3%of occupied homes
Shaded: ZIP code 20818's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 20818 details
| City | Cabin John |
|---|---|
| State | Maryland |
| County | Montgomery County |
| Metro area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 0.9 sq mi, plus 0.4 sq mi of water |
| Population density | 1,655 people per sq mi |
| Bachelor's degree or higher | 86.4% of adults 25+ |
| Average commute | 30.1 minutes |
| Center coordinates | 38.97349, -77.16239 |
ZIP codes near 20818
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 20812 | Glen Echo, MD | 1.1 mi | 276 |
| 20817 | Bethesda, MD | 1.7 mi | 37,454 |
| 22101 | Mc Lean, VA | 2.3 mi | 30,953 |
| 20816 | Bethesda, MD | 2.5 mi | 18,140 |
| 22106 | Mc Lean, VA | 2.9 mi | — |
| 22109 | Mc Lean, VA | 2.9 mi | — |
| 22108 | Mc Lean, VA | 3.1 mi | — |
| 22107 | Mc Lean, VA | 3.1 mi | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 20818?
A typical home in ZIP code 20818 is worth about $1,240,000 (Zillow Home Value Index). The median household here earns $245,982 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $1,240,000 homeWhat can a $245,982 income afford?Rental property numbers
About ZIP code 20818
What city is ZIP code 20818?
ZIP code 20818 is in Cabin John, MD, in Montgomery County.
What county is ZIP code 20818 in?
20818 is mainly in Montgomery County, Maryland.
What is the population of ZIP code 20818?
About 1,539 people live in ZIP code 20818, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 20818 in?
20818 is in Eastern Time (UTC−5). It observes daylight saving time.