state house districtMassachusetts 115th State House District
presidential margin
2004–2024 · Democratic minus Republican
2004R+2.9
2008R+3.6
2012R+8.2
2016R+1.8
2020D+8.5
2024R+0.3
net swing · 2004→2024D+2.6R+2.9 → R+0.3
vs. U.S. · 2024D+1.2R+0.3 vs R+1.5
presidential returns
2024 turnout 82.1% of 32,463 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
12,815
12,892
929
26,636
32,463
82.1%
2020
14,244
11,954
687
26,885
31,327†
85.8%
2016
11,115
11,557
1,865
24,537
30,286†
81.0%
2012
10,743
12,683
281
23,707
29,012†
81.7%
2008
10,687
11,504
381
22,572
28,430†
79.4%
2004
10,140
10,751
287
21,178
27,849†
76.0%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupMA HD 5MassachusettsUnited States
Irish32.1%18.6%9.4%
Italian15.3%11.1%4.8%
English14.9%9.7%9.5%
German6.2%5.4%12.5%
French4.2%4.7%1.6%
American4.2%3.3%5.3%
Portuguese4.1%2.3%—
Scottish2.9%—1.3%
Puerto Rican0.8%4.6%1.8%
Dominican0.4%2.7%0.7%
Mexican0.2%0.8%11.3%
Salvadoran0.2%1.1%0.7%
Ecuadorian0.2%0.3%—
Chinese0.6%2.5%1.3%
Asian Indian0.3%1.9%1.4%
Vietnamese0.3%0.8%0.6%
Cape Verdean1.1%0.9%—
Haitian0.5%1.1%0.3%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
MA HD 5
Massachusetts
United States
Median age
41.7
40.3
39.1
Age 18–24
8.3%
9.9%
9.2%
Age 65 and older
19.8%
17.9%
17.2%
Household economy
Measure
MA HD 5
Massachusetts
United States
Median household income
$138,461
$103,960
$84,427
Poverty rate
5.1%
10.1%
12.5%
Bachelor's degree or higher (25+)
41.8%
47.3%
35.6%
Languages at home
Measure
MA HD 5
Massachusetts
United States
Speaks a non-English language at home
14.7%
25.1%
22.3%
Spanish
3.1%
9.7%
13.6%
French (incl. Cajun & Haitian)
4.4%
1.9%
0.7%
Other Indo-European
5.1%
6.1%
2.0%
Religious landscape
Measure
MA HD 5
Massachusetts
United States
Catholic
—
35.5%
18.6%
Evangelical Protestant
—
3.6%
16.5%
Unclaimed / not counted
—
51.4%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Massachusetts 115th State House District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−2.9%
2008
−3.6%
2012
−8.2%
2016
−1.8%
2020
+8.5%
2024
−0.3%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
48.1%Harris12,815
48.4%Trump12,892
3.5%
R+0.3
R+8.8
D+1.2
26,636
D
53.0%Biden14,244
44.5%Trump11,954
2.6%
D+8.5
D+10.3
D+4.1
26,885
R
45.3%Clinton11,115
47.1%Trump11,557
7.6%
R+1.8
D+6.4
R+3.9
24,537
R
45.3%Obama10,743
53.5%Romney12,683
1.2%
R+8.2
R+4.6
R+12.0
23,707
R
47.3%Obama10,687
51.0%McCain11,504
1.7%
R+3.6
R+0.7
R+10.9
22,572
R
47.9%Kerry10,140
50.8%Bush10,751
1.4%
R+2.9
—
R+0.4
21,178
current representation
Current officeholders
RDavid DeCosteState House · 5th Plymouth
State legislative officeholder from OpenStates nightly current-legislator data.
With a 2024 presidential margin of just R+0.3, this southeastern Massachusetts district sits at the edge of competitive territory, making it a reliable bellwether for statewide suburban and exurban shifts.
Across the recorded series it reached a Democratic high of 8.5 points in 2020 and a Republican high of 8.2 points in 2012. Between 2020 and 2024 the district moved 8.8 points toward the Republican candidate; the 2024 margin was 0.3 points.
A population of 43,779, a 88% non-Hispanic-white share, and a median household income of $138,461 describe the district. The district's voting pattern over the last decade is most similar to that of 6th Plymouth District and 7th Plymouth District.
Akashic
Political twins — state-house districts
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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 115th State House District. Akashic. https://akashic.app/sld-lower/25115/. Accessed May 20, 2026. License: CC BY 4.0.
How did Massachusetts 115th State House District vote in 2024?
In 2024, Massachusetts 115th State House District voted a near-tie (R+0.3), carried by the Republican candidate. Out of 26,636 votes cast, 12,815 went Democratic and 12,892 went Republican.
When did Massachusetts 115th State House District last vote Democratic?
The most recent presidential election in which Massachusetts 115th State House District voted Democratic was 2020.
How many people live in Massachusetts 115th State House District?
Massachusetts 115th State House District has a population of 43,779 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Massachusetts 115th State House District?
Median household income in Massachusetts 115th State House District is $138,461 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of Massachusetts 115th State House District?
Akashic tracks 6 presidential elections in Massachusetts 115th State House District from 2004 to 2024. Of those, 1 went Democratic and 5 went Republican.
