ZIP code 20842: Dickerson, MD
20842 is a ZIP code in Dickerson, Maryland, mainly in Montgomery County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metro area. About 2,369 people live here.
- Population
- 2,369
- Median household income
- $204,013
- Typical home value
- $730,500+1.1% in 12 months
- Median rent
- $1,777gross, per month
- Median age
- 48.5
- Homeowners
- 82.4%of occupied homes
Shaded: ZIP code 20842's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 20842 details
| City | Dickerson |
|---|---|
| State | Maryland |
| County | Montgomery County (also partly Frederick 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 | 55.7 sq mi, plus 2.4 sq mi of water |
| Population density | 43 people per sq mi |
| Bachelor's degree or higher | 52% of adults 25+ |
| Average commute | 41.3 minutes |
| Center coordinates | 39.19988, -77.41527 |
Median rent in 20842 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $1,580/mo |
| 3 bedrooms | $1,723/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 20842
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 20839 | Beallsville, MD | 1.5 mi | 158 |
| 20838 | Barnesville, MD | 2.9 mi | 306 |
| 20841 | Boyds, MD | 5.1 mi | 9,969 |
| 20837 | Poolesville, MD | 5.8 mi | 6,699 |
| 21790 | Tuscarora, MD | 6.4 mi | 170 |
| 20176 | Leesburg, VA | 6.5 mi | 51,471 |
| 21710 | Adamstown, MD | 7.5 mi | 4,661 |
| 20874 | Germantown, MD | 7.6 mi | 62,738 |
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 20842?
A typical home in ZIP code 20842 is worth about $730,500 (Zillow Home Value Index). The median household here earns $204,013 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $730,500 homeWhat can a $204,013 income afford?Rental property numbers
About ZIP code 20842
What city is ZIP code 20842?
ZIP code 20842 is in Dickerson, MD, in Montgomery County.
What county is ZIP code 20842 in?
20842 is mainly in Montgomery County, Maryland, and partly in Frederick County.
What is the population of ZIP code 20842?
About 2,369 people live in ZIP code 20842, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 20842 in?
20842 is in Eastern Time (UTC−5). It observes daylight saving time.