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ZIP Code 20842
Barnesville, MD, Montgomery County
Population
2,369
Land area
55.7sq mi
People per sq mi
43
City
Barnesville
ZIP 20842 and nearby ZIP codes
ZIP 20842 at a glance
- ZIP 20842 (Barnesville) is 93% less dense than Maryland as a whole.
- The median household income is $204,013, 97% above the Maryland median of $103,678.
- A typical owner-occupied home is valued at $745,800 (78% above Maryland) and median rent is $1,777 a month.
Local data for ZIP 20842
Counts from official public data
Housing and community stats
ZIP 20842, American Community Survey 2020-2024
Median household income
$204,013
Poverty rate
1.2%
Median home value
$745,800
Median rent
$1,777/mo
Homeownership
82.4%
Bachelor's or higher
52.0%
Median age
48.5
Average commute
41.3 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
61
ZIP Business Patterns 2023
Employees
444
$29.3M annual payroll
PPP loans
$3.1M
72 loans
Campaign donations
$30.5K
68% D, 1% R, 2026 cycle
Environment and hazard risk
ZIP 20842, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: winter weather
Storm events since 1996
1,849
Countywide, mostly thunderstorm wind
Flood insurance policies
2,029
0.8% of homes, county
July high / Jan low
84° / 25°F
47.9 inches of rain a year
Health statistics
Share of adults in ZIP 20842, CDC PLACES estimates
Obesity
26.9%
U.S. 33.3% -6.4 pts
Diabetes
10.2%
U.S. 12.1% -1.9 pts
Smoking
7.5%
U.S. 12.8% -5.3 pts
Uninsured (18-64)
6.6%
U.S. 11.1% -4.5 pts
Frequently asked questions
- What city is ZIP code 20842?
- ZIP code 20842 is in Barnesville, MD (Montgomery County).
- What county is ZIP code 20842 in?
- ZIP code 20842 is mostly in Montgomery County, Maryland.
- How many people live in ZIP code 20842?
- About 2,369 people live in the 20842 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.