- Lead
- 2,073
- Total
- 14,228
- vs nation
- D+16.0
Connecticut 103rd State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,101
- Total
- 14,602
- vs nation
- D+9.9
- Lead
- 523
- Total
- 13,148
- vs nation
- D+1.9
- Lead
- 1,734
- Total
- 12,385
- vs nation
- D+10.1
- Lead
- 1,971
- Total
- 13,060
- vs nation
- D+7.8
- Lead
- 259
- Total
- 12,650
- vs nation
- D+4.5
- Lead
- 1,654
- Total
- 11,746
- vs nation
- D+13.6
- Lead
- 1,636
- Total
- 11,365
- vs nation
- D+5.9
Key facts
- 2024 presidential margin
- D+14.6MIT Election Lab
- Population
- 24,5522024 5-year
- Population density
- 944 / sq mi2024 5-year · TIGER/Line
- Land area
- 26 sq miTIGER/Line
- Median household income
- $134,5052024 5-year
- White (non-Hispanic)
- 78.2%2024 5-year
- Black
- 5.7%2024 5-year
- Hispanic / Latino
- 6.9%2024 5-year
- Peak Democratic margin
- D+30.6 in 1964MIT Election Lab
- Peak Republican margin
- R+34.0 in 1956MIT Election Lab
- Most similar
- State House District 114, CT · twin score 97.0
presidential history
Party record book
Connecticut 103rd 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
65.3%
6,967 votes · D+30.6 · modeled estimate
Runner-up · Barack Obama, 2008 · 56.9%
Republican
Dwight D. Eisenhower1956
67.0%
7,238 votes · R+34.0 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 64.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
8,229votes
56.4% of the vote · D+14.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 8,010 votes
Republican
Ronald Reagan1984
8,027votes
63.8% of the vote · R+28.1 · modeled estimate
Runner-up · Richard Nixon, 1972 · 7,603 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
Kamala Harris2024
+16.0pts D vs U.S.
Place D+14.6 · U.S. R+1.5 · modeled estimate
Runner-up · Al Gore, 2000 · +13.6 pts
Republican
Herbert Hoover1932
+21.2pts R vs U.S.
Place R+3.5 · U.S. D+17.8 · modeled estimate
Runner-up · William H. Taft, 1912 · +20.7 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 |
|---|---|---|---|---|
| 2020 | D | 58.3%5,761 | 41.7%4,118 | 9,879 |
| 2018 | D | 60.8%5,267 | 39.2%3,391 | 8,658 |
With roughly 24,500 residents, this state house district delivered a 14.6-point Democratic margin in the 2024 presidential race, reflecting the suburban and urban patterns common to Connecticut's legislative map.
Across the recorded series it reached a Democratic high of 30.6 points in 1964 and a Republican high of 34.0 points in 1956. The 2024 margin was 14.6 points.
A population of 24,552, a 78% non-Hispanic-white share, and a median household income of $134,505 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 114 and State House District 101.
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 →
Connecticut 103rd State House District. Akashic. https://akashic.app/sld-lower/09103/. Accessed May 20, 2026. License: CC BY 4.0.