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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).
Precinct results — 2024 general
248 precincts reported in Massachusetts's 9th Congressional District's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 25019-NANTUCKET_ward0_precinct1 | Democratic | D+36.6 | 6,884 |
| 25001-EASTHAM_ward0_precinct1 | Democratic | D+40.3 | 4,038 |
| 25023-ROCHESTER_ward0_precinct1 | Republican | R+14.6 | 3,869 |
| 25023-MARION_ward0_precinct1 | Democratic | D+24.3 | 3,526 |
| 25023-PLYMOUTH_ward0_precinct15 | Democratic | D+22.2 | 3,372 |
| 25007-OAK BLUFFS_ward0_precinct1 | Democratic | D+47.1 | 3,009 |
| 25023-PLYMOUTH_ward0_precinct17 | Democratic | D+9.1 | 2,813 |
| 25007-EDGARTOWN_ward0_precinct1 | Democratic | D+39.4 | 2,793 |
| 25023-MARSHFIELD_ward0_precinct6 | Democratic | D+5.6 | 2,708 |
| 25001-MASHPEE_ward0_precinct5 | Democratic | D+11.4 | 2,667 |
| 25005-DARTMOUTH_ward0_precinct9 | Democratic | D+18.5 | 2,649 |
| 25001-FALMOUTH_ward0_precinct5 | Democratic | D+28.4 | 2,632 |
| 25001-BARNSTABLE_ward0_precinct7 | Democratic | D+15.5 | 2,620 |
| 25001-BARNSTABLE_ward0_precinct5 | Democratic | D+2.3 | 2,615 |
| 25001-PROVINCETOWN_ward0_precinct1 | Democratic | D+84.6 | 2,603 |
| 25007-TISBURY_ward0_precinct1 | Democratic | D+55.7 | 2,595 |
| 25001-BREWSTER_ward0_precinct1 | Democratic | D+28.7 | 2,558 |
| 25001-BARNSTABLE_ward0_precinct1 | Democratic | D+25.8 | 2,555 |
| 25023-HANOVER_ward0_precinct1 | Republican | R+1.7 | 2,553 |
| 25023-MIDDLEBOROUGH_ward0_precinct1 | Republican | R+2.7 | 2,540 |
All 248 precincts are modelable — open the race in the simulator and drill to precinct grain.
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 →