US > Maryland > Montgomery County > Dickerson, MD 20842

20842 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:

Comus, MD | Dickerson, MD

ZIP Code 20842: Basic Data & USPS Preferred City Name

Preferred Name, USPS

Dickerson, MD 20842

Not Acceptable, USPS

Comus, MD 20842

ZIP Code Type: STANDARD
County: Montgomery County
Centroid: Latitude 39.204, Longitude -77.422
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 20842 has segments in 2 Counties / Independent Cities (Frederick, Montgomery).

Businesses Addresses: 41
PO Box Addresses: 42
Residential Addresses: 751

Multi-Family Addresses: 0
Single Family Addresses: 751

The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.

Dickerson, MD 20842 Data & Demographics

Source: 2020-2024 American Community Survey 5-Year Estimates

POPULATION
Total Population	2,369 (100%)
Population Density	43 per sq mi
Diversity Index¹	53


INCOME
Median Household Income	$204,013
Per Capita Income	$82,106
Median Home Value	$745,800

HOUSING
Total HU (Housing Units)	855 (100%)
Owner Occupied HU	661 (77.3%)
Renter Occupied HU	141 (16.5%)
Vacant Housing Units	53 (6.2%)

HOUSEHOLDS
Total Households	802
Average Household Size	2.95
Family Households	664 (82.8%)

NOTES

The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).

Dickerson, MD 20842 - Peer Comparisons by Rank and Percentile

The table below compares 20842 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 17579	48th
Population Density	# 20580	39th
Median Household Income	# 335	99th
Per Capita Income	# 1188	96th
Diversity Index	# 6311	81st

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.

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20842 ZIP Code Profile, Map, Data & Demographics

ZIP Code 20842: Basic Data & USPS Preferred City Name

Dickerson, MD 20842 Data & Demographics

POPULATION

INCOME

HOUSING

HOUSEHOLDS