119th Congress · MA-1
Massachusetts's 1st Congressional District
Massachusetts's 1st Congressional District (MA-1) has a population of 776,064. The median household income is $74,087 and the median age is 42.0.
776,064
Population
347
People / sq mi
$74,087
Median Income
42.0
Median Age
MA-1 covers 2,233 sq mi of land at 347.5 people per square mile.
Race & Ethnicity
| White | 75.3% |
| Black or African American | 6.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
Economy & Income
$74,087
Median Household Income
$41,279
Per Capita Income
8.7%
Poverty Rate
3.5%
Unemployment
Housing
$293,000
Median Home Value
$1,104
Median Rent
66.1%
Homeownership
Education
89.7%
High School+
31.8%
Bachelor's+
Other Massachusetts Congressional Districts
Largest cities in Massachusetts
Largest counties in Massachusetts
State rankings
Frequently Asked Questions
Massachusetts's 1st Congressional District (MA-1) has a population of 776,064 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 Massachusetts's 1st Congressional District is $74,087, with a per capita income of $41,279.
Massachusetts's 1st Congressional District is 75.3% White, 6.1% Black, 0.0% Asian, and 1.2% Hispanic or Latino, per Census ACS data.
More from Massachusetts
Data for Massachusetts's 1st 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.
The this entity record above pulls directly from the U.S. Census Bureau ACS and decennial files. What follows is the per-entity context — how this entity sits in the broader U.S. population demographics distribution and which underlying factors drive the headline numbers.
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.