Massachusetts 78th State House District, Massachusetts: Democratic loyalist district. In 2024, voted D+30%. Democratic peak: D+51 in 1964.
Key facts
- 2024 presidential margin
- D+30MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 70,7512024 5-year
- Median household income
- $117,0142024 5-year
- White (non-Hispanic)
- 67.3%2024 5-year
- Black
- 4.5%2024 5-year
- Hispanic / Latino
- 16.4%2024 5-year
- Peak Democratic margin
- D+51 in 1964MIT Election Lab
- Peak Republican margin
- R+46 in 1920MIT Election Lab
Constituent county margins for 20th Middlesex District, MAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 22,343 | 11,760 | 35,083 | ||
| D | 25,028 | 11,139 | 37,258 | ||
| D | 20,978 | 10,624 | 34,566 | ||
| D | 19,384 | 12,285 | 32,239 | ||
| D | 19,163 | 11,243 | 31,069 | ||
| D | 18,011 | 10,980 | 29,392 | ||
| D | 16,529 | 9,059 | 27,720 | ||
| D | 16,091 | 7,537 | 26,279 | ||
| D | 13,603 | 8,618 | 28,949 | ||
| D | 14,466 | 12,727 | 27,645 | ||
| R | 12,834 | 13,949 | 26,878 | ||
| R | 10,936 | 11,211 | 26,751 | ||
| D | 15,006 | 11,084 | 27,042 | ||
| D | 14,329 | 11,807 | 26,281 | ||
| D | 15,498 | 8,392 | 24,737 | ||
| D | 18,655 | 6,017 | 24,772 | ||
| D | 15,011 | 10,814 | 25,878 | ||
| R | 9,446 | 14,644 | 24,154 | ||
| R | 10,470 | 13,615 | 24,165 | ||
| D | 11,087 | 9,675 | 21,201 | ||
| R | 9,657 | 9,979 | 19,676 | ||
| R | 10,169 | 10,301 | 20,584 | ||
| D | 8,684 | 8,549 | 18,732 | ||
| R | 7,746 | 8,122 | 16,273 | ||
| R | 7,630 | 8,507 | 16,221 | ||
| R | 2,521 | 7,528 | 11,558 | ||
| R | 2,661 | 7,484 | 10,552 | ||
| R | 2,475 | 2,864 | 5,506 | ||
| O | 1,688 | 1,579 | 5,090 | ||
| R | 1,489 | 2,834 | 4,714 | ||
| R | 1,513 | 2,794 | 4,541 | ||
| R | 1,487 | 2,488 | 4,216 | ||
| R | 1,066 | 2,832 | 4,053 | ||
| R | 1,698 | 2,120 | 3,958 | ||
| — | — | — | — | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
18.5%
Italian
12.8%
English
9.7%
German
5.4%
French
3.9%
Polish
3.1%
American
2.9%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 40.0 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$117,014
20th Middlesex District ranks near the middle of US counties.
20th Middlesex District$117,014
Massachusetts$103,960
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
8.5%
Child poverty is below the national average.
Children under 189.8%
Working age (18–64)7.8%
Seniors (65+)12.0%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
71.1%
speak English only
Spanish12.6%
Other Indo-European9.5%
Asian & Pacific Islander5.2%
Other languages1.7%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 48.3% of residents not counted as adherents by any reporting body.
The 20th Middlesex sits in a suburban-to-urban gradient within one of Massachusetts' most densely contested counties, where a single-digit presidential margin makes it a credible target for both major parties in state legislative cycles.
The Democratic margin in Massachusetts 78th State House District reached its widest at fifty-one points in 1964. The margin in 2024 was thirty points — still decisive.
Its loyalty is rooted in its place. Median household income of $117,014, a 67% non-Hispanic-white share, and a population of 70,751 together describe a district whose political habits are deeply settled.
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.
20th Middlesex District, Massachusetts. Akashic. https://akashic.app/sld-lower/25078/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did 20th Middlesex District, Massachusetts vote in 2024?
In 2024, 20th Middlesex District, Massachusetts voted Democratic by 30.2 points (D+30), carried by the Democratic candidate. Out of 35,083 votes cast, 22,343 went Democratic and 11,760 went Republican.
What is 20th Middlesex District, Massachusetts's political archetype?
Akashic classifies 20th Middlesex District, Massachusetts as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 17 times, Republican 16 times, and other 1 times.
When did 20th Middlesex District, Massachusetts last vote Republican?
The most recent presidential election in which 20th Middlesex District, Massachusetts voted Republican was 1984.
How many people live in 20th Middlesex District, Massachusetts?
20th Middlesex District, Massachusetts has a population of 70,751 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in 20th Middlesex District, Massachusetts?
Median household income in 20th Middlesex District, Massachusetts is $117,014 — above the national median of $80,734. The Massachusetts state median is $103,960.
What is the political history of 20th Middlesex District, Massachusetts?
Akashic tracks 38 presidential elections in 20th Middlesex District, Massachusetts from 1876 to 2024. Of those, 17 went Democratic and 16 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.