Akashic
1892–2024
Akashic
Massachusetts 91st State House District
presidential margin
2008D+38.32012D+44.42016D+44.42020D+50.12024D+36.3
full record · 2008 → 2024
D+36.3
2024
median income$98,256U.S. $80,734 · MA $103,960
median age35.0U.S. 39.1 · MA 40.3
poverty rate12.5%U.S. 12.5% · MA 10.1%
bachelor’s+ (25+)59.5%U.S. 35.6% · MA 47.3%
non-english29.1%U.S. 22.3% · MA 25.1%
race · ethnicity · ancestry
Irish11.6%
Italian7.7%
English6.1%
Chinese9.2%
Asian Indian8.0%
Cambodian2.2%
African American†6.8%
Haitian2.8%
African1.2%
Puerto Rican2.4%
Salvadoran1.4%
Mexican1.0%
religion

Religious adherence is published only at the county level (U.S. Religion Census). See Middlesex County.

American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.

Massachusetts 91st State House District

Akashic
Massachusetts 91st State House DistrictHarrisD+36.3
2024
2024 presidential margin for Massachusetts 91st State House DistrictThe boundary of Massachusetts 91st State House District, filled by its 2024 presidential margin (D+36.3), over faint outlines of the counties it is drawn from.Massachusetts 91st State House District · D+36.3
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic65.6%10,091
Donald TrumpRepublican29.3%4,510
Jill SteinGreen-Rainbow5.1%783
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (1 county) — table
2024 presidential result by county for Massachusetts 91st State House District — winner and D-vs-R margin.
CountyWinnerMargin
Middlesex County, MADemocraticD+39.2
5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
65.6%Harris10,091
29.3%Trump4,510
5.1%Stein783
+36.3%
15,384
D
74.1%Biden12,763
24.0%Trump4,139
1.8%Jorgensen317
+50.1%
17,219
D
69.3%Clinton10,482
25.0%Trump3,775
5.7%Johnson859
+44.4%
15,116
D
72.2%Obama9,884
27.8%Romney3,810
0.0%
+44.4%
13,694
D
68.1%Obama9,205
29.8%McCain4,032
2.0%Nader273
+38.3%
13,510
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +36.3% in 2024.+36.3%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+38.3%
2012+44.4%
2016+44.4%
2020+50.1%
2024+36.3%
DemocraticRepublican
current representation
Current officeholders
DSteve UltrinoState House · 33rd Middlesex

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

With a 2024 presidential margin of D+36.3, the 33rd Middlesex District ranks among the most reliably blue state house seats in Massachusetts, reflecting the dense, highly educated suburban communities that anchor Middlesex County.

Across the recorded series it reached a Democratic high of 50.1 points in 2020. Between 2020 and 2024 the district moved 13.8 points toward the Republican candidate; the 2024 margin was 36.3 points.

A population of 45,941, a 41% non-Hispanic-white share, and a median household income of $98,256 describe the district. The district's voting pattern over the last decade is most similar to that of 1st Norfolk District and 17th Middlesex District.

Political twins — state-house districts

The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

1st Norfolk District
Massachusetts
94.7twin score
% Asianmedian incomecollege share≠ Irish ancestry
17th Middlesex District
Massachusetts
94.4twin score
median incomecollege share% Catholic≠ % Asian
18th Middlesex District
Massachusetts
93.9twin score
% Asian2012–2016 trajectorymedian income≠ elasticity

Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.

Compare two places, side by side

Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Massachusetts 91st State House District. Akashic. https://akashic.app/sld-lower/25091/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions

How did Massachusetts 91st State House District vote in 2024?
In 2024, Massachusetts 91st State House District voted Democratic by 36.3 points (D+36.3), carried by the Democratic candidate. Out of 15,384 votes cast, 10,091 went Democratic and 4,510 went Republican.
How many people live in Massachusetts 91st State House District?
Massachusetts 91st State House District has a population of 45,941 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Massachusetts 91st State House District?
Median household income in Massachusetts 91st State House District is $98,256 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of Massachusetts 91st State House District?
Akashic tracks 5 presidential elections in Massachusetts 91st State House District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.