electionsmcp › races › Massachusetts State House District 31
Massachusetts State House District 31
The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Massachusetts actually voted.
Model Massachusetts State House District 31 →
Current officeholder
Michael S. Day Democratic
2024 result
Democratic D+100.0
2024 votes cast
16,753
Office
State House
Precinct results — 2024 general
14 precincts reported in Massachusetts State House District 31's 2024 general election. The twenty largest:
| Precinct | Winner | Margin | Votes |
|---|---|---|---|
| 25017-STONEHAM_ward0_precinct6 | Democratic | D+99.9 | 1,419 |
| 25017-STONEHAM_ward0_precinct2 | Democratic | D+99.8 | 1,358 |
| 25017-WINCHESTER_ward0_precinct3 | Democratic | D+98.9 | 1,341 |
| 25017-STONEHAM_ward0_precinct3 | Democratic | D+99.8 | 1,339 |
| 25017-STONEHAM_ward0_precinct5 | Democratic | D+99.9 | 1,320 |
| 25017-STONEHAM_ward0_precinct1 | Democratic | D+100.0 | 1,218 |
| 25017-WINCHESTER_ward0_precinct1 | Democratic | D+98.5 | 1,216 |
| 25017-WINCHESTER_ward0_precinct7 | Democratic | D+98.0 | 1,184 |
| 25017-WINCHESTER_ward0_precinct4 | Democratic | D+98.3 | 1,153 |
| 25017-STONEHAM_ward0_precinct4 | Democratic | D+100.0 | 1,151 |
| 25017-STONEHAM_ward0_precinct7 | Democratic | D+99.6 | 1,135 |
| 25017-WINCHESTER_ward0_precinct5 | Democratic | D+97.8 | 1,115 |
| 25017-WINCHESTER_ward0_precinct2 | Democratic | D+97.9 | 995 |
| 25017-WINCHESTER_ward0_precinct8 | Democratic | D+97.7 | 966 |
All 14 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 State House District 31 in five steps
- Set the candidates. Name the contenders for the Massachusetts State House District 31 (or keep the generic Democrat / Republican defaults). The map starts from real 2024 results in every precinct.
- 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.
- Drill to precincts. Zoom from the state down to individual precincts and override any of them by hand.
- Roll up & share. Roll the result up to chamber control, then publish a shareable, frozen link to your scenario.
Open Massachusetts State House District 31 in the simulator →
Frequently asked
Who represents Massachusetts State House District 31?
Michael S. Day (Democratic) currently holds this State House seat.
What was the 2024 result in Massachusetts State House District 31?
D+100.0 — 16,753 Democratic, 0 Republican, of 16,753 votes cast.
Can I model this race myself?
Yes — open it in the electionsmcp simulator and model vote-share swing and turnout from the real 2024 baseline, down to the precinct, then roll it up to chamber control.