119th Congress · MA-4
Massachusetts's 4th Congressional District
Massachusetts's 4th Congressional District (MA-4) has a population of 781,422. The median household income is $113,712 and the median age is 40.9.
781,422
Population
1162
People / sq mi
$113,712
Median Income
40.9
Median Age
MA-4 covers 672 sq mi of land at 1162.5 people per square mile.
Race & Ethnicity
| White | 79.3% |
| Black or African American | 3.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.0% |
Economy & Income
$113,712
Median Household Income
$62,795
Per Capita Income
5.6%
Poverty Rate
3.3%
Unemployment
Housing
$545,500
Median Home Value
$1,538
Median Rent
67.9%
Homeownership
Education
91.9%
High School+
49.5%
Bachelor's+
Other Massachusetts Congressional Districts
Largest cities in Massachusetts
Largest counties in Massachusetts
State rankings
Frequently Asked Questions
Massachusetts's 4th Congressional District (MA-4) has a population of 781,422 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 4th Congressional District is $113,712, with a per capita income of $62,795.
Massachusetts's 4th Congressional District is 79.3% White, 3.5% Black, 0.0% Asian, and 1.0% Hispanic or Latino, per Census ACS data.
More from Massachusetts
Data for Massachusetts's 4th 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.
What sets Massachusetts's 4th Congressional District apart is money: median household income runs $113,712, above the US median of $78,538. Massachusetts's 4th Congressional District is a congressional district in Massachusetts with a population of 781,422.
Households here are among the highest-earning of all US congressional districts: median income is $113,712, above the US median of $78,538. Only 5.6% of residents live in poverty, below the national 12.4%. A typical home is worth $545,500, with typical rent around $1,538.
Educational attainment is on the higher side for US congressional districts — 49.5% of adults hold a four-year degree, above the national 35.0%.
Taken together, the income and housing figures place Massachusetts's 4th Congressional District firmly in the higher-cost, higher-earning tier of US congressional districts — a profile that tends to track dense job markets and competitive housing.
Source: U.S. Census Bureau ACS, 2026.