Census ACS · Maryland
ZIP Code 21218
ZIP code 21218 is located in Maryland with a population of 44,903. The median household income is $58,378 and the median home value is $229,800.
44,903
Population
$58,378
Median Income
$229,800
Median Home Value
34.6
Median Age
Race & Ethnicity
| White | 26.9% |
| Black | 60.0% |
| Asian | 0.0% |
| Hispanic (any race) | 1.2% |
Male: 48.7% · Female: 51.3%
Economy & Income
$58,378
Median Household Income
$38,481
Per Capita Income
15.0%
Poverty Rate
Housing
$229,800
Median Home Value
$1,239
Median Rent
49.1%
Homeownership
Education
89.9%
High School+
43.7%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in Maryland
Part of Maryland
Metro areas in Maryland
Frequently Asked Questions
ZIP code 21218 in Maryland has a population of 44,903 according to latest Census ACS data.
The median household income in ZIP 21218 is $58,378. The per capita income is $38,481. The poverty rate is 15.0%.
ZIP code 21218 is located in Maryland.
More from Maryland
Data for ZIP Code Tabulation Area (ZCTA) 21218 from the American Community Survey 5-Year estimates. ZCTAs approximately correspond to USPS ZIP code delivery areas but are built from Census blocks and may not match exactly.
ZIP 21218 stands apart on settlement density — it is among the most densely settled of US ZIP codes, at roughly 10,373 people per square mile. With 44,903 residents, ZIP 21218 is a ZIP code in Maryland.
The typical household earns $58,378, below the US median of $78,538. Roughly 15.0% of residents fall below the poverty line, above the national 12.4%. Homes carry a median value of $229,800, with typical rent around $1,239.
College attainment is above the local norm at 43.7%, above the national 35.0%.
That density explains much of the rest of the profile in ZIP 21218: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.