- Lead
- 3,410
- Total
- 19,405
- vs nation
- D+19.0
Massachusetts 98th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 5,647
- Total
- 20,380
- vs nation
- D+23.3
- Lead
- 3,501
- Total
- 18,990
- vs nation
- D+16.3
- Lead
- 1,050
- Total
- 18,151
- vs nation
- D+1.9
- Lead
- 1,486
- Total
- 17,850
- vs nation
- D+1.1
- Lead
- 1,972
- Total
- 17,083
- vs nation
- D+14.0
- Lead
- 2,659
- Total
- 16,194
- vs nation
- D+15.9
- Lead
- 3,110
- Total
- 15,213
- vs nation
- D+11.9
Key facts
- 2024 presidential margin
- D+17.6MIT Election Lab
- Population
- 42,3242024 5-year
- Population density
- 3,779 / sq mi2024 5-year · TIGER/Line
- Land area
- 11.2 sq miTIGER/Line
- Median household income
- $96,5962024 5-year
- White (non-Hispanic)
- 63.6%2024 5-year
- Black
- 6.7%2024 5-year
- Hispanic / Latino
- 5.5%2024 5-year
- Peak Democratic margin
- D+37.4 in 1964MIT Election Lab
- Peak Republican margin
- R+65.6 in 1896MIT Election Lab
- Most similar
- 5th Norfolk District, MA · twin score 94.5
presidential history
Party record book
Massachusetts 98th State House District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
68.6%
8,831 votes · D+37.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 62.8%
Republican
William McKinley1896
79.2%
999 votes · R+65.6 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 78.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
12,792votes
62.8% of the vote · D+27.7 · modeled estimate
Runner-up · Kamala Harris, 2024 · 11,126 votes
Republican
Ronald Reagan1984
9,383votes
58.8% of the vote · R+17.8 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 8,934 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Joe Biden2020
+23.3pts D vs U.S.
Place D+27.7 · U.S. D+4.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · +19.0 pts
Republican
William McKinley1896
+59.5pts R vs U.S.
Place R+65.6 · U.S. R+6.1 · modeled estimate
Runner-up · Alf Landon, 1936 · +50.7 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 81.4%15,621 | 18.6%3,581 | 19,202 |
| 2020 | D | 83.7%16,214 | 16.3%3,154 | 19,368 |
Anchored in Norfolk County's inner suburbs, this district of roughly 42,000 residents has delivered consistent double-digit Democratic presidential margins, reflecting the educated, densely settled character of communities south of Boston.
Across the recorded series it reached a Democratic high of 37.4 points in 1964 and a Republican high of 65.6 points in 1896. Between 2020 and 2024 the district moved 10.1 points toward the Republican candidate; the 2024 margin was 17.6 points.
A population of 42,324, a 64% non-Hispanic-white share, and a median household income of $96,596 describe the district. The district's voting pattern over the last decade is most similar to that of 5th Norfolk District and 4th Norfolk District.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Massachusetts 98th State House District. Akashic. https://akashic.app/sld-lower/25098/. Accessed May 20, 2026. License: CC BY 4.0.