Checked
ZIP Code 21405
Herald Harbor, MD, Anne Arundel County
Population
495
Land area
1sq mi
People per sq mi
484
City
Herald Harbor
ZIP 21405 and nearby ZIP codes
Local data for ZIP 21405
Counts from official public data
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
9
ZIP Business Patterns 2023
Employees
64
$2.3M annual payroll
PPP loans
$391K
8 loans
Campaign donations
$9,670
57% D, 0% R, 2026 cycle
Environment and hazard risk
ZIP 21405, 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 21405, CDC PLACES estimates
Obesity
29.5%
U.S. 33.3% -3.8 pts
Diabetes
11.5%
U.S. 12.1% -0.6 pts
Smoking
6.6%
U.S. 12.8% -6.2 pts
Uninsured (18-64)
3.6%
U.S. 11.1% -7.5 pts
Frequently asked questions
- What city is ZIP code 21405?
- ZIP code 21405 is in Herald Harbor, MD (Anne Arundel County).
- What county is ZIP code 21405 in?
- ZIP code 21405 is mostly in Anne Arundel County, Maryland.
- How many people live in ZIP code 21405?
- About 495 people live in the 21405 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.