- Lead
- 45,043
- Total
- 96,542
- vs nation
- R+45.2
New Jersey 30th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 33,103
- Total
- 93,791
- vs nation
- R+39.8
- Lead
- 23,609
- Total
- 72,035
- vs nation
- R+34.9
- Lead
- 16,467
- Total
- 64,232
- vs nation
- R+29.5
- Lead
- 17,671
- Total
- 70,185
- vs nation
- R+32.4
- Lead
- 20,103
- Total
- 67,360
- vs nation
- R+27.4
- Lead
- 7,770
- Total
- 56,470
- vs nation
- R+14.3
- Lead
- 4,182
- Total
- 52,152
- vs nation
- R+16.5
Key facts
- 2024 presidential margin
- R+46.7MIT Election Lab
- Population
- 226,2612024 5-year
- Population density
- 1,919 / sq mi2024 5-year · TIGER/Line
- Land area
- 118 sq miTIGER/Line
- Median household income
- $96,7952024 5-year
- White (non-Hispanic)
- 81.2%2024 5-year
- Black
- 2.7%2024 5-year
- Hispanic / Latino
- 11.2%2024 5-year
- Peak Democratic margin
- D+15.5 in 1912MIT Election Lab
- Peak Republican margin
- R+57.4 in 1956MIT Election Lab
- Most similar
- Assembly District 62, NY · twin score 82.9
presidential history
Party record book
New Jersey 30th 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
51.9%
14,257 votes · D+4.2 · modeled estimate
Runner-up · Samuel J. Tilden, 1876 · 46.9%
Republican
Dwight D. Eisenhower1956
78.6%
17,119 votes · R+57.4 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 75.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
29,837votes
31.8% of the vote · R+35.3 · modeled estimate
Runner-up · Barack Obama, 2008 · 25,904 votes
Republican
Donald Trump2024
70,162votes
72.7% of the vote · R+46.7 · modeled estimate
Runner-up · Donald Trump, 2020 · 62,940 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
Woodrow Wilson1912
−4.0pts D vs U.S.
Place D+15.5 · U.S. D+19.5 · modeled estimate
Runner-up · Alton B. Parker, 1904 · −12.5 pts
Republican
Thomas E. Dewey1948
+47.4pts R vs U.S.
Place R+43.0 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2024 · +45.2 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 | R | 39.1%31,383 | 60.9%48,792 | 80,175 |
| 2018 | R | 40.7%22,040 | 59.3%32,085 | 54,125 |
Anchored in South Jersey's rural and suburban communities, this district delivered a 46.7-point Republican presidential margin in 2024, making it an outlier in a state that otherwise leans Democratic at the statewide level.
Across the recorded series it reached a Democratic high of 15.5 points in 1912 and a Republican high of 57.4 points in 1956. Between 2020 and 2024 the district moved 11.4 points toward the Republican candidate; the 2024 margin was 46.7 points.
A population of 226,261, a 81% non-Hispanic-white share, and a median household income of $96,795 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 62 and Assembly District 99.
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 →
New Jersey 30th State House District. Akashic. https://akashic.app/sld-lower/34030/. Accessed May 20, 2026. License: CC BY 4.0.