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ZIP Code 21012
Arnold, MD, Anne Arundel County
Population
22,570
Land area
9.8sq mi
People per sq mi
2,308
City
Arnold
ZIP 21012 and nearby ZIP codes
ZIP 21012 at a glance
- ZIP 21012 (Arnold) is about 3.6 times as dense as Maryland as a whole.
- The median household income is $139,432, 34% above the Maryland median of $103,678.
- A typical owner-occupied home is valued at $563,800 (34% above Maryland) and median rent is $2,166 a month.
Local data for ZIP 21012
Counts from official public data
Housing and community stats
ZIP 21012, American Community Survey 2020-2024
Median household income
$139,432
Poverty rate
3.3%
Median home value
$563,800
Prices +5.2% in a year
Median rent
$2,166/mo
Homeownership
86.3%
Bachelor's or higher
57.5%
Median age
38.0
Average commute
28.2 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
404
ZIP Business Patterns 2023
Employees
3,428
$152M annual payroll
PPP loans
$26.3M
489 loans
Campaign donations
$327K
35% D, 32% R, 2026 cycle
Environment and hazard risk
ZIP 21012, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: winter weather
Storm events since 1996
1,387
Countywide, mostly thunderstorm wind
Flood insurance policies
4,442
2.5% of homes, county
July high / Jan low
89° / 29°F
Health statistics
Share of adults in ZIP 21012, CDC PLACES estimates
Obesity
32.1%
U.S. 33.3% -1.2 pts
Diabetes
9.1%
U.S. 12.1% -3.0 pts
Smoking
9.0%
U.S. 12.8% -3.8 pts
Uninsured (18-64)
4.8%
U.S. 11.1% -6.3 pts
Frequently asked questions
- What city is ZIP code 21012?
- ZIP code 21012 is in Arnold, MD (Anne Arundel County).
- What county is ZIP code 21012 in?
- ZIP code 21012 is mostly in Anne Arundel County, Maryland.
- How many people live in ZIP code 21012?
- About 22,570 people live in the 21012 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.