- Lead
- 17,783
- Total
- 72,719
- vs nation
- D+25.9
New Jersey 20th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 33,614
- Total
- 78,223
- vs nation
- D+38.5
- Lead
- 35,755
- Total
- 70,339
- vs nation
- D+48.7
- Lead
- 33,045
- Total
- 66,304
- vs nation
- D+46.0
- Lead
- 31,053
- Total
- 69,537
- vs nation
- D+37.4
- Lead
- 22,437
- Total
- 62,242
- vs nation
- D+38.5
- Lead
- 23,208
- Total
- 57,276
- vs nation
- D+40.0
- Lead
- 22,380
- Total
- 58,337
- vs nation
- D+29.8
Key facts
- 2024 presidential margin
- D+24.5MIT Election Lab
- Population
- 228,1482024 5-year
- Population density
- 8,708 / sq mi2024 5-year · TIGER/Line
- Land area
- 26.2 sq miTIGER/Line
- Median household income
- $81,4742024 5-year
- White (non-Hispanic)
- 19.2%2024 5-year
- Black
- 23.2%2024 5-year
- Hispanic / Latino
- 49.1%2024 5-year
- Peak Democratic margin
- D+50.8 in 2016MIT Election Lab
- Peak Republican margin
- R+34.4 in 1920MIT Election Lab
- Most similar
- State Senate District 29, NJ · twin score 96.7
presidential history
Party record book
New Jersey 20th 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
Lyndon B. Johnson1964
74.3%
58,139 votes · D+49.1 · modeled estimate
Runner-up · Barack Obama, 2012 · 74.3%
Republican
Warren G. Harding1920
63.2%
9,393 votes · R+34.4 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 60.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
58,139votes
74.3% of the vote · D+49.1 · modeled estimate
Runner-up · Joe Biden, 2020 · 55,528 votes
Republican
Richard Nixon1972
35,258votes
51.5% of the vote · R+4.9 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 34,757 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
Hillary Clinton2016
+48.7pts D vs U.S.
Place D+50.8 · U.S. D+2.1 · modeled estimate
Runner-up · Barack Obama, 2012 · +46.0 pts
Republican
Herbert Hoover1932
+12.1pts R vs U.S.
Place D+5.7 · U.S. D+17.8 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +9.0 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.
With a 2024 presidential margin of D+24.5, this Essex County-anchored district delivers among the largest Democratic advantages in the state, anchored by dense urban communities with high minority and renter populations.
Across the recorded series it reached a Democratic high of 50.8 points in 2016 and a Republican high of 34.4 points in 1920. Between 2020 and 2024 the district moved 18.5 points toward the Republican candidate; the 2024 margin was 24.5 points.
A population of 228,148, a 19% non-Hispanic-white share, and a median household income of $81,474 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 29 and State Senate District 31.
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 20th State Senate District. Akashic. https://akashic.app/sld-upper/34020/. Accessed May 20, 2026. License: CC BY 4.0.