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New Hampshire Senate 2026

Polling average and every underlying poll — published numbers come only from the precomputed race_averages table.

D+4.4

Chris Pappas (D) 46.5% vs John Sununu (R) 42.1%

17 polls in the average · latest Sep 17, 2026 · weighted by recency (45-day half-life) and sample size

Matchup: most-polled pairing (primary not yet decided) · Avg pollster grade 2.3 / 3.0

Every poll in the average

Each poll appears as two dots at its end date. Dashed lines mark the current published average — no trend line is drawn, by design.

30%35%40%45%50%55%Apr ’25Jul ’25Oct ’25Jan ’26Apr ’26Jul ’26Oct ’26InsiderAdvantage · Sep 16–17, 2026: Pappas 48%InsiderAdvantage · Sep 16–17, 2026: Sununu 40%University of New Hampshire · Aug 20–24, 2026: Pappas 43%University of New Hampshire · Aug 20–24, 2026: Sununu 45%Saint Anselm · Aug 17–18, 2026: Pappas 48%Saint Anselm · Aug 17–18, 2026: Sununu 41%Saint Anselm · Jun 24–25, 2026: Pappas 47%Saint Anselm · Jun 24–25, 2026: Sununu 41%University of New Hampshire · Jun 18–23, 2026: Pappas 47%University of New Hampshire · Jun 18–23, 2026: Sununu 44%University of New Hampshire · Apr 17–21, 2026: Pappas 49%University of New Hampshire · Apr 17–21, 2026: Sununu 42%Emerson College · Mar 21–23, 2026: Pappas 45.3%Emerson College · Mar 21–23, 2026: Sununu 43.7%Saint Anselm · Mar 16–18, 2026: Pappas 46%Saint Anselm · Mar 16–18, 2026: Sununu 43%yes. every kid. · Jan 28–29, 2026: Pappas 45%yes. every kid. · Jan 28–29, 2026: Sununu 41%University of New Hampshire · Jan 15–19, 2026: Pappas 50%University of New Hampshire · Jan 15–19, 2026: Sununu 45%Praecones Analytica · Dec 26–28, 2025: Pappas 42.3%Praecones Analytica · Dec 26–28, 2025: Sununu 35.6%Saint Anselm · Nov 18–19, 2025: Pappas 44%Saint Anselm · Nov 18–19, 2025: Sununu 41%co/efficient · Oct 9–13, 2025: Pappas 45%co/efficient · Oct 9–13, 2025: Sununu 42%University of New Hampshire · Sep 17–23, 2025: Pappas 49%University of New Hampshire · Sep 17–23, 2025: Sununu 43%co/efficient · Sep 10–12, 2025: Pappas 46%co/efficient · Sep 10–12, 2025: Sununu 43%1892 Polling · Sep 2–4, 2025: Pappas 45%1892 Polling · Sep 2–4, 2025: Sununu 43%Quantus Insights · Mar 17–19, 2025: Pappas 44%Quantus Insights · Mar 17–19, 2025: Sununu 53%46.5 — current average42.1 — current average

Polls in this average

Selection matches refresh_race_averages(): general-election polls of this race that tested both Chris Pappas and John Sununu. Partisan and internal polls are included in the average (flagged below), matching the published methodology.

PollsterGradeDatesSamplePappas %Sununu %Margin
InsiderAdvantage2.0Sep 16–17, 20261,200 LV4840D+8.0↗
University of New Hampshire2.4Aug 20–24, 20261,878 LV4345R+2.0↗
Saint Anselm2.4Aug 17–18, 20261,411 LV4841D+7.0↗
Saint Anselm2.4Jun 24–25, 20261,614 RV4741D+6.0↗
University of New Hampshire2.4Jun 18–23, 20262,232 LV4744D+3.0↗
University of New Hampshire2.4Apr 17–21, 20261,295 LV4942D+7.0↗
Emerson College2.9Mar 21–23, 20261,100 LV45.343.7D+1.6↗
Saint Anselm2.4Mar 16–18, 20261,491 RV4643D+3.0↗
yes. every kid.—Jan 28–29, 2026563 LV4541D+4.0↗
University of New Hampshire2.4Jan 15–19, 20262,038 LV5045D+5.0↗
Praecones Analytica2.0Dec 26–28, 2025603 RV42.335.6D+6.7↗
Saint Anselm2.4Nov 18–19, 20252,112 RV4441D+3.0↗
co/efficient1.1Oct 9–13, 20251,034 LV4542D+3.0↗
University of New Hampshire2.4Sep 17–23, 20251,225 LV4943D+6.0↗
co/efficient1.1Sep 10–12, 2025904 LV4643D+3.0↗
1892 Polling1.3Sep 2–4, 2025500 LV4543D+2.0↗
Quantus InsightsR partisan—Mar 17–19, 2025650 RV4453R+9.0↗

Other 2026 Senate polls in New Hampshire

General-election polls for this race that are not in the average — they tested a different matchup than Pappas vs Sununu. Shown for transparency; primaries are excluded entirely.

PollsterDatesTop results
University of New HampshireAug 20–24, 2026Chris Pappas 45 · Scott Brown 40
Saint AnselmAug 17–18, 2026Chris Pappas 49 · Scott Brown 37
Saint AnselmJun 24–25, 2026Chris Pappas 48 · Scott Brown 36
University of New HampshireJun 18–23, 2026Chris Pappas 52 · Scott Brown 38

Candidates

Democrats
  • Chris Pappas
Republicans
  • John Sununu
  • Scott Brown

Party labels curated from public sources.