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ZIP Code 21737
Brookeville, MD, Howard County
Population
2,474
Land area
5.1sq mi
People per sq mi
483
City
Brookeville
ZIP 21737 and nearby ZIP codes
ZIP 21737 at a glance
- The median household income is more than $250,000, the highest bracket the Census Bureau reports.
- A typical owner-occupied home is valued at $996,400 (about 2.4 times the Maryland figure).
Local data for ZIP 21737
Counts from official public data
Housing and community stats
ZIP 21737, American Community Survey 2020-2024
Median household income
$250,000+
Poverty rate
0.2%
Median home value
$996,400
Prices +9.1% in a year
Homeownership
93.2%
Bachelor's or higher
75.8%
Median age
38.8
Average commute
33.1 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
83
ZIP Business Patterns 2023
Employees
678
$39.4M annual payroll
PPP loans
$9.6M
109 loans
Campaign donations
$22.1K
52% D, 4% R, 2026 cycle
Environment and hazard risk
ZIP 21737, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: winter weather
Storm events since 1996
911
Countywide, mostly thunderstorm wind
Flood insurance policies
816
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 21737, CDC PLACES estimates
Obesity
26.9%
U.S. 33.3% -6.4 pts
Diabetes
9.4%
U.S. 12.1% -2.7 pts
Smoking
6.5%
U.S. 12.8% -6.3 pts
Uninsured (18-64)
4.0%
U.S. 11.1% -7.1 pts
Frequently asked questions
- What city is ZIP code 21737?
- ZIP code 21737 is in Brookeville, MD (Howard County).
- What county is ZIP code 21737 in?
- ZIP code 21737 is mostly in Howard County, Maryland.
- How many people live in ZIP code 21737?
- About 2,474 people live in the 21737 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.