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ZIP Code 21120
Cockeysville, MD, Baltimore County
Population
7,440
Land area
42sq mi
People per sq mi
177
City
Cockeysville
ZIP 21120 and nearby ZIP codes
ZIP 21120 at a glance
- ZIP 21120 (Cockeysville) is 72% less dense than Maryland as a whole.
- The median household income is $162,052, 56% above the Maryland median of $103,678.
- A typical owner-occupied home is valued at $580,900 (38% above Maryland) and median rent is $1,271 a month.
Local data for ZIP 21120
Counts from official public data
Housing and community stats
ZIP 21120, American Community Survey 2020-2024
Median household income
$162,052
Poverty rate
2.8%
Median home value
$580,900
Prices +5.0% in a year
Median rent
$1,271/mo
Homeownership
93.8%
Bachelor's or higher
64.2%
Median age
40.8
Average commute
36.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
174
ZIP Business Patterns 2023
Employees
1,026
$55.1M annual payroll
PPP loans
$12.1M
223 loans
Campaign donations
$43.7K
30% D, 23% R, 2026 cycle
Environment and hazard risk
ZIP 21120, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: winter weather
Storm events since 1996
2,155
Countywide, mostly thunderstorm wind
Flood insurance policies
3,097
1.2% of homes, county
July high / Jan low
85° / 24°F
47.9 inches of rain a year
Health statistics
Share of adults in ZIP 21120, CDC PLACES estimates
Obesity
30.2%
U.S. 33.3% -3.1 pts
Diabetes
11.1%
U.S. 12.1% -1.0 pts
Smoking
9.5%
U.S. 12.8% -3.3 pts
Uninsured (18-64)
5.2%
U.S. 11.1% -5.9 pts
Frequently asked questions
- What city is ZIP code 21120?
- ZIP code 21120 is in Cockeysville, MD (Baltimore County).
- What county is ZIP code 21120 in?
- ZIP code 21120 is mostly in Baltimore County, Maryland.
- How many people live in ZIP code 21120?
- About 7,440 people live in the 21120 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.