- Lead
- 8,354
- Total
- 105,699
- vs nation
- D+9.4
New Jersey 18th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 23,770
- Total
- 108,605
- vs nation
- D+17.4
- Lead
- 18,355
- Total
- 94,080
- vs nation
- D+17.4
- Lead
- 22,207
- Total
- 86,728
- vs nation
- D+21.8
- Lead
- 18,371
- Total
- 92,369
- vs nation
- D+12.6
- Lead
- 9,899
- Total
- 84,635
- vs nation
- D+14.2
- Lead
- 16,217
- Total
- 74,230
- vs nation
- D+21.3
- Lead
- 16,778
- Total
- 74,460
- vs nation
- D+14.0
Key facts
- 2024 presidential margin
- D+7.9MIT Election Lab
- Population
- 234,9172024 5-year
- Population density
- 3,395 / sq mi2024 5-year · TIGER/Line
- Land area
- 69.2 sq miTIGER/Line
- Median household income
- $128,6962024 5-year
- White (non-Hispanic)
- 42.1%2024 5-year
- Black
- 6.4%2024 5-year
- Hispanic / Latino
- 12.3%2024 5-year
- Peak Democratic margin
- D+38.9 in 1964MIT Election Lab
- Peak Republican margin
- R+42.8 in 1920MIT Election Lab
- Most similar
- Assembly District 14, NJ · twin score 93.2
presidential history
Party record book
New Jersey 18th 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
69.2%
42,527 votes · D+38.9 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 63.7%
Republican
Warren G. Harding1920
69.6%
8,642 votes · R+42.8 · modeled estimate
Runner-up · Richard Nixon, 1972 · 62.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
65,120votes
60.0% of the vote · D+21.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 55,210 votes
Republican
Ronald Reagan1984
46,886votes
60.8% of the vote · R+22.5 · modeled estimate
Runner-up · Donald Trump, 2024 · 46,856 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
Barack Obama2012
+21.8pts D vs U.S.
Place D+25.6 · U.S. D+3.9 · modeled estimate
Runner-up · Al Gore, 2000 · +21.3 pts
Republican
William McKinley1896
+17.2pts R vs U.S.
Place R+23.3 · U.S. R+6.1 · modeled estimate
Runner-up · Warren G. Harding, 1920 · +16.6 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 | 58.4%52,986 | 41.6%37,798 | 90,784 |
| 2020 | D | 62.8%61,206 | 37.2%36,273 | 97,479 |
Assembly District 18 anchors a dense stretch of Essex County communities where the 2024 presidential contest finished at D+7.9, consistent with a district that blends inner-ring suburbs with more urbanized neighborhoods.
Across the recorded series it reached a Democratic high of 38.9 points in 1964 and a Republican high of 42.8 points in 1920. Between 2020 and 2024 the district moved 14.0 points toward the Republican candidate; the 2024 margin was 7.9 points.
A population of 234,917, a 42% non-Hispanic-white share, and a median household income of $128,696 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 14 and Assembly District 26.
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 18th State House District. Akashic. https://akashic.app/sld-lower/34018/. Accessed May 20, 2026. License: CC BY 4.0.