Akashic
1892–2024
Akashic
Massachusetts 3rd Congressional District
presidential margin
2008D+19.02012D+15.62016D+21.32020D+27.32024D+18.7
full record · 2008 → 2024
D+18.7
2024
median income$99,663U.S. $80,734 · MA $103,960
median age39.2U.S. 39.1 · MA 40.3
poverty rate10.3%U.S. 12.5% · MA 10.1%
bachelor’s+ (25+)55.0%U.S. 35.6% · MA 47.3%
non-english28.1%U.S. 22.3% · MA 25.1%
race · ethnicity · ancestry
Irish17.7%
Italian11.8%
English9.4%
Puerto Rican6.2%
Dominican3.7%
Salvadoran2.3%
Chinese2.7%
Asian Indian2.4%
Vietnamese0.6%
African American†2.1%
Haitian0.8%
African0.4%
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 3rd Congressional District

Akashic
2024 presidential electionMassachusetts 3rd Congressional DistrictHarrisD+18.7
Massachusetts 3rd Congressional District premium atlas map: Harris D+18.7, 251 precincts, 8 city labels.
2024
251 precincts by 2024 margin · 8 cities, own margin · ◎ bluest & reddest city
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: +18.7% in 2024.+18.7%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+19.0%
2012+15.6%
2016+21.3%
2020+27.3%
2024+18.7%
DemocraticRepublican
current representation
Current officeholders
DLori TrahanU.S. House · MA-03-0.41
DEd MarkeyU.S. Senate-0.52
DElizabeth WarrenU.S. Senate-0.74

Federal officeholders only. State and local officeholders are planned for the next data pass.

Source · Voteview HSall_members.csv.
Congressional elections · 25 House races · 17 Senate races

U.S. House

Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.

Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
YearDistrictWonDemocraticRepublicanTotal
20243D
73.0%264,698
0.0%0
362,678
20223D
61.5%154,496
35.2%88,585
251,389
20203D
97.7%286,896
0.0%0
293,539
20183D
62.0%173,175
33.5%93,445
279,327
20163D
68.7%236,713
31.2%107,519
344,592
20143D
63.0%139,104
36.9%81,638
220,946
20123D
65.9%212,119
34.0%109,372
321,753
20103D
56.5%122,708
39.2%85,124
217,352
20083D
98.5%227,619
0.0%0
231,107
20063D
98.8%166,973
0.0%0
168,956
20043D
70.5%192,036
29.4%80,197
272,412
20023D
98.8%155,697
0.0%0
157,545
20003D
98.8%213,065
0.0%0
215,561
19983D
56.9%108,613
41.5%79,174
190,878
19963D
52.9%135,044
45.4%115,694
255,097
19943R
44.2%93,689
54.6%115,810
212,035
19923R
44.3%115,587
50.4%131,473
260,932
19903D
65.5%150,992
0.0%0
230,432
19883D
99.8%191,005
0.0%0
191,383
19863D
75.0%120,222
0.0%0
160,202
19843D
67.4%148,461
32.6%71,765
220,254
19823D
99.9%142,611
0.0%0
142,740
19803D
72.3%141,560
27.7%54,213
195,783
19783D
75.2%119,337
24.7%39,259
158,730
19763D
100.0%168,520
0.0%0
168,568

U.S. Senate

Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
YearWonDemocraticRepublicanTotal
2024D
59.8%2,041,668
40.0%1,365,440
3,413,329
2020D
66.3%2,357,809
33.1%1,177,765
3,556,708
2018D
60.3%1,633,371
36.2%979,210
2,707,090
2014D
61.9%1,289,944
38.0%791,950
2,084,966
2012D
53.7%1,696,346
46.2%1,458,048
3,156,553
2008D
65.9%1,971,974
30.9%926,044
2,994,247
2006D
69.3%1,500,738
30.5%661,532
2,165,490
2002D
81.0%1,605,976
0.0%0
1,981,860
2000D
72.7%1,889,494
12.9%334,341
2,599,420
1996D
52.2%1,334,135
44.7%1,143,120
2,555,942
1994D
58.1%1,265,997
41.0%894,000
2,179,945
1990D
54.5%1,321,712
41.0%992,917
2,424,579
1988D
65.0%1,693,344
33.9%884,267
2,606,225
1984D
55.1%1,393,150
44.9%1,136,913
2,530,471
1982D
60.8%1,247,084
38.3%784,602
2,050,564
1978D
55.1%1,093,283
44.8%890,584
1,985,700
1976D
69.3%1,726,657
29.0%722,641
2,491,255

Stretching from Worcester through the Pioneer Valley, MA-3 combines a large college-town population with post-industrial urban centers, consistently returning presidential margins above D+20 across recent cycles.

Across the recorded series it reached a Democratic high of 27.3 points in 2020. Between 2020 and 2024 the district moved 8.6 points toward the Republican candidate; the 2024 margin was 18.7 points.

A population of 781,168, a 64% non-Hispanic-white share, and a median household income of $99,663 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 8 and Congressional District 4.

Political twins — districts

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

Congressional District 8
Massachusetts
87.5twin score
college share% Catholic2020 margin≠ Puerto Rican ancestry
Congressional District 4
Massachusetts
86.7twin score
2020–2024 trajectory% Catholic% Evangelical≠ college share
Congressional District 2
Massachusetts
84.9twin score
elasticity2020–2024 trajectory% Evangelical≠ % Catholic

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 →

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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Massachusetts 3rd Congressional District. Akashic. https://akashic.app/cd/2503/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Massachusetts 3rd Congressional District

counties it covers3
Essex CountyMiddlesex CountyWorcester County

Frequently asked questions

How did Massachusetts 3rd Congressional District vote in 2024?
In 2024, Massachusetts 3rd Congressional District voted Democratic by 18.7 points (D+18.7), carried by the Democratic candidate. Out of 362,713 votes cast, 208,645 went Democratic and 140,869 went Republican.
How many people live in Massachusetts 3rd Congressional District?
Massachusetts 3rd Congressional District has a population of 781,168 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Massachusetts 3rd Congressional District?
Median household income in Massachusetts 3rd Congressional District is $99,663 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of Massachusetts 3rd Congressional District?
Akashic tracks 5 presidential elections in Massachusetts 3rd Congressional District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.