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Massachusetts's 9th Congressional District
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Massachusetts actually voted.
Model Massachusetts's 9th Congressional District →
Current officeholder
William R. Keating Democratic
2024 result
Democratic D+13.0
2024 votes cast
445,753
Office
U.S. House
Who lives in this district
This district is home to about 782,837 people, median age 46.9, median household income $97,651.
Population
782,837
Median age
46.9
Median household income
$97,651
Bachelor's degree or higher
42%
Race & ethnicity: White 83.1% · Black 2.7% · Hispanic 6.1% · Asian 1.5%
Source: U.S. Census Bureau, 2019–2023 American Community Survey (5-year).
Find your district
Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.
Model Massachusetts's 9th Congressional District in five steps
- Set the candidates. Name the contenders for the Massachusetts's 9th Congressional District (or keep the generic Democrat / Republican defaults). The map starts from the canonical mixed-grain 2024 presidential baseline.
- Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
- Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
- Explore local geography. Zoom from the state through counties to the finest supported reporting grain and adjust the places available in the model.
- Roll up & share. Roll the result up to chamber control, then share the exact versioned scenario.
Open Massachusetts's 9th Congressional District in the simulator →