119th Congress · MD-3
Maryland's 3rd Congressional District
Maryland's 3rd Congressional District (MD-3) has a population of 773,638. The median household income is $128,806 and the median age is 39.6.
773,638
Population
1545
People / sq mi
$128,806
Median Income
39.6
Median Age
MD-3 covers 501 sq mi of land at 1545.4 people per square mile.
Race & Ethnicity
| White | 59.7% |
| Black or African American | 17.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
Economy & Income
$128,806
Median Household Income
$61,802
Per Capita Income
3.6%
Poverty Rate
2.5%
Unemployment
Housing
$490,000
Median Home Value
$1,943
Median Rent
74.4%
Homeownership
Education
94.3%
High School+
52.8%
Bachelor's+
Other Maryland Congressional Districts
Largest cities in Maryland
Largest counties in Maryland
State rankings
Frequently Asked Questions
Maryland's 3rd Congressional District (MD-3) has a population of 773,638 according to the latest Census ACS 5-Year estimates. Each US Congressional District is drawn to be roughly equal in population (~760K people).
The median household income in Maryland's 3rd Congressional District is $128,806, with a per capita income of $61,802.
Maryland's 3rd Congressional District is 59.7% White, 17.5% Black, 0.0% Asian, and 1.4% Hispanic or Latino, per Census ACS data.
More from Maryland
Data for Maryland's 3rd Congressional District (119th Congress) from the American Community Survey 5-Year estimates. Land area from the Census Gazetteer files. Congressional districts are redrawn after each decennial Census; the 119th Congress (current) uses post-2020 boundaries.
this entity is one of the data points covered by this site’s U.S. population demographics dataset. The detail above comes directly from the U.S. Census Bureau ACS and decennial files; the context that follows situates the headline numbers against the broader distribution across U.S. states, metros, cities, and ZIPs.
Every number on this page links back to the U.S. Census Bureau ACS and decennial files; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. states, metros, cities, and ZIPs. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: U.S. Census Bureau ACS, 2026.