- Lead
- 3,211
- Total
- 134,389
- vs nation
- R+0.9
New Jersey 39th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,988
- Total
- 145,215
- vs nation
- D+1.7
- Lead
- 3,385
- Total
- 122,266
- vs nation
- R+4.9
- Lead
- 5,716
- Total
- 112,155
- vs nation
- R+9.0
- Lead
- 8,262
- Total
- 121,357
- vs nation
- R+14.1
- Lead
- 14,151
- Total
- 117,462
- vs nation
- R+9.6
- Lead
- 2,603
- Total
- 105,991
- vs nation
- R+3.0
- Lead
- 1,472
- Total
- 105,189
- vs nation
- R+9.9
Key facts
- 2024 presidential margin
- R+2.4MIT Election Lab
- Population
- 231,4282024 5-year
- Population density
- 2,100 / sq mi2024 5-year · TIGER/Line
- Land area
- 110 sq miTIGER/Line
- Median household income
- $166,5772024 5-year
- White (non-Hispanic)
- 71.4%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 10.0%2024 5-year
- Peak Democratic margin
- D+8.8 in 1912MIT Election Lab
- Peak Republican margin
- R+66.3 in 1920MIT Election Lab
- Most similar
- State Senate District 26, NJ · twin score 95.1
presidential history
Party record book
New Jersey 39th State Senate 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
Joe Biden2020
52.2%
75,846 votes · D+6.2 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 51.4%
Republican
Warren G. Harding1920
81.3%
16,363 votes · R+66.3 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 80.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
75,846votes
52.2% of the vote · D+6.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 64,443 votes
Republican
Richard Nixon1972
98,175votes
72.2% of the vote · R+45.5 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 92,403 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
+1.7pts D vs U.S.
Place D+6.2 · U.S. D+4.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · −0.9 pts
Republican
Thomas E. Dewey1944
+51.9pts R vs U.S.
Place R+44.4 · U.S. D+7.5 · modeled estimate
Runner-up · Thomas E. Dewey, 1948 · +51.7 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 | 60.0%68,385 | 40.0%45,616 | 114,001 |
| 2018 | D | 63.6%41,383 | 36.4%23,719 | 65,102 |
New Jersey 39th State Senate District sits in the Mid-Atlantic. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 8.8 points in 1912 and a Republican high of 66.3 points in 1920. Between 2020 and 2024 the district moved 8.6 points toward the Republican candidate; the 2024 margin was 2.4 points.
A population of 231,428, a 71% non-Hispanic-white share, and a median household income of $166,577 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 26 and State Senate District 40.
The state-senate 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 39th State Senate District. Akashic. https://akashic.app/sld-upper/34039/. Accessed May 20, 2026. License: CC BY 4.0.