New Hampshire 18th 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
65.2%
6,744 votes · D+30.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1944 · 60.9%
Republican
Ronald Reagan1984
71.0%
9,904 votes · R+43.1 · modeled estimate
Runner-up · William McKinley, 1896 · 67.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
14,146votes
51.6% of the vote · D+5.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 13,958 votes
Republican
Donald Trump2024
12,877votes
47.0% of the vote · D+3.9 · modeled estimate
Runner-up · Donald Trump, 2020 · 12,775 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
Al Smith1928
+24.0pts D vs U.S.
Place D+6.6 · U.S. R+17.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1944 · +14.3 pts
Republican
William McKinley1896
+37.0pts R vs U.S.
Place R+43.0 · U.S. R+6.1 · modeled estimate
Runner-up · George H. W. Bush, 1988 · +25.9 pts
current representation
Current officeholders
RVictoria SullivanState Senate · 18
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
53.6%16,201
46.4%14,045
30,246
2020
D
53.9%15,777
46.1%13,501
29,278
2018
D
55.1%11,611
44.9%9,470
21,081
New Hampshire Senate District 18 tilted Democratic by 4 points in the 2024 presidential race, placing it among the state's genuine swing districts. Its roughly 57,000 residents reflect the mix of small-city and rural voters typical of central New Hampshire.
Across the recorded series it reached a Democratic high of 30.5 points in 1964 and a Republican high of 43.1 points in 1984. Between 2020 and 2024 the district moved 1.0 points toward the Republican candidate; the 2024 margin was 3.9 points.
A population of 56,585, a 75% non-Hispanic-white share, and a median household income of $89,368 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 12 and State Senate District 11.
Akashic
Political twins — state-senate districts
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
New Hampshire 18th State Senate District. Akashic. https://akashic.app/sld-upper/33018/. Accessed May 20, 2026. License: CC BY 4.0.
How did New Hampshire 18th State Senate District vote in 2024?
In 2024, New Hampshire 18th State Senate District voted Democratic by 3.9 points (D+3.9), carried by the Democratic candidate. Out of 27,370 votes cast, 13,958 went Democratic and 12,877 went Republican.
When did New Hampshire 18th State Senate District last vote Republican?
The most recent presidential election in which New Hampshire 18th State Senate District voted Republican was 2016.
How many people live in New Hampshire 18th State Senate District?
New Hampshire 18th State Senate District has a population of 56,585 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in New Hampshire 18th State Senate District?
Median household income in New Hampshire 18th State Senate District is $89,368 — above the national median of $80,734. The New Hampshire state median is $99,031.
What is the political history of New Hampshire 18th State Senate District?
Akashic tracks 38 presidential elections in New Hampshire 18th State Senate District from 1876 to 2024. Of those, 15 went Democratic and 23 went Republican.