Census ACS · Maryland
ZIP Code 21234
ZIP code 21234 is located in Maryland with a population of 65,010. The median household income is $83,139 and the median home value is $276,000.
65,010
Population
$83,139
Median Income
$276,000
Median Home Value
40.7
Median Age
Race & Ethnicity
| White | 58.9% |
| Black | 29.0% |
| Asian | 0.0% |
| Hispanic (any race) | 1.0% |
Male: 47.2% · Female: 52.8%
Economy & Income
$83,139
Median Household Income
$45,061
Per Capita Income
4.7%
Poverty Rate
Housing
$276,000
Median Home Value
$1,542
Median Rent
65.2%
Homeownership
Education
93.0%
High School+
36.5%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in Maryland
Part of Maryland
Metro areas in Maryland
Frequently Asked Questions
ZIP code 21234 in Maryland has a population of 65,010 according to latest Census ACS data.
The median household income in ZIP 21234 is $83,139. The per capita income is $45,061. The poverty rate is 4.7%.
ZIP code 21234 is located in Maryland.
More from Maryland
Data for ZIP Code Tabulation Area (ZCTA) 21234 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.
What distinguishes ZIP 21234 is density: among the most densely settled of US ZIP codes, around 4,868 people per square mile. ZIP 21234 is a ZIP code in Maryland with a population of 65,010.
Median household income is $83,139, above the US median of $78,538. About 4.7% of residents live below the federal poverty level, below the national 12.4%. Median home value is $276,000, with typical rent around $1,542.
About 36.5% of adults 25 and older have a bachelor’s degree, near the 35.0% national figure.
That density explains much of the rest of the profile in ZIP 21234: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Source: U.S. Census Bureau ACS, 2026.