119th Congress · MA-9
Massachusetts's 9th Congressional District
Massachusetts's 9th Congressional District (MA-9) has a population of 782,837. The median household income is $97,651 and the median age is 46.9.
782,837
Population
624
People / sq mi
$97,651
Median Income
46.9
Median Age
MA-9 covers 1,255 sq mi of land at 623.7 people per square mile.
Race & Ethnicity
| White | 84.3% |
| Black or African American | 2.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
Economy & Income
$97,651
Median Household Income
$56,213
Per Capita Income
5.2%
Poverty Rate
3.1%
Unemployment
Housing
$529,100
Median Home Value
$1,356
Median Rent
75.9%
Homeownership
Education
93.0%
High School+
42.0%
Bachelor's+
Other Massachusetts Congressional Districts
Largest cities in Massachusetts
Largest counties in Massachusetts
State rankings
Frequently Asked Questions
Massachusetts's 9th Congressional District (MA-9) has a population of 782,837 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 9th Congressional District is $97,651, with a per capita income of $56,213.
Massachusetts's 9th Congressional District is 84.3% White, 2.7% Black, 0.0% Asian, and 1.2% Hispanic or Latino, per Census ACS data.
More from Massachusetts
Data for Massachusetts's 9th 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.
Massachusetts's 9th Congressional District skews on age — the median resident is 46.9, older than the national median. With 782,837 residents, Massachusetts's 9th Congressional District is a congressional district in Massachusetts.
The typical household earns $97,651 a year, above the US median of $78,538. The poverty rate, 5.2%, is on the lower side for US congressional districts and below the national 12.4%. The median home value is $529,100, with typical rent around $1,356.
About 42.0% of adults 25 and older have a bachelor’s degree, above the 35.0% national figure.
The age structure shapes everything downstream in Massachusetts's 9th Congressional District — from housing demand to the mix of working-age earners reflected in the income figures above.
Source: U.S. Census Bureau ACS, 2026.