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Pollster file

University of New Hampshire Survey Center

Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.

Historical polls
116
Mean absolute error
5.93percentage points
Historical bias
D+2.31
Represented cycles
132000–2022
Current archive
139canonical records
History span
Nov 3, 2000through Nov 4, 2022
Identity

Known names and relationships

Known aliases
University of New Hampshire
Organization type
Single canonical organization
Cycles represented
2000 · 2002 · 2004 · 2006 · 2008 · 2010 · 2012 · 2013 · 2014 · 2016 · 2018 · 2020 · 2022

116 eligible historical polls across 13 represented cycles passed the published history identity checks. Historical bias is descriptive and is kept separate from sponsor or client affiliation.

Canonical 2025–2026 archive

Current-cycle records

Archive source date 2026-10-24. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.

12 shown · 139 total

Shaheen +4

Don't know 11% · Someone else 0% · Stefany Shaheen 46% · Anthony DiLorenzo 42%

Field dates
Sep 17–Sep 21, 2026
Sample
707 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Healey +16

Don't know 7% · Someone else 1% · Mike Minogue 38% · Maura Healey 54%

Field dates
Sep 17–Sep 21, 2026
Sample
557 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Jackson +4

Don't know 1% · Someone else 1% · Troy Jackson 51% · Susan Collins 47%

Field dates
Sep 17–Sep 21, 2026
Sample
1,301 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Markey +23

Don't know 8% · Someone else 0% · Joe Tache 9% · Ed Markey 53% · John Deaton 30%

Field dates
Sep 17–Sep 21, 2026
Sample
556 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Goodlander +21

Don't know 6% · Someone else 0% · Lily Tang Williams 35% · Robbie Mahrou 3% · Maggie Goodlander 56%

Field dates
Sep 17–Sep 21, 2026
Sample
694 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Pappas +8

Don't know 4% · Someone else 1% · John Sununu 42% · Chris Pappas 50% · Edmond Laplante 2%

Field dates
Sep 17–Sep 21, 2026
Sample
1,392 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Reed +20

Don't know 8% · Someone else 1% · Jack Reed 53% · Raymond McKay 33% · Michael Bahry 5%

Field dates
Sep 17–Sep 21, 2026
Sample
595 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Pingree +8

Don't know 5% · Someone else 2% · Hannah Pingree 48% · Bobby Charles 40% · Rick Bennett 5%

Field dates
Sep 17–Sep 21, 2026
Sample
1,312 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Foulkes +19

Don't know 10% · Someone else 2% · Christopher Reynolds 2% · Aaron Guckian 17% · Jasjit Gotra 0% · Helena Foulkes 44% · Ken Block 25%

Field dates
Sep 17–Sep 21, 2026
Sample
596 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Ayotte +4

Don't know 7% · Someone else 1% · Cinde Warmington 43% · Stephen Villee 2% · Kelly Ayotte 47%

Field dates
Sep 17–Sep 21, 2026
Sample
1,407 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Janoo +6

Don't know 6% · Someone else 0% · Phil Scott 43% · Dean Roy 0% · Brian Judd 2% · Amanda Janoo 49% · June Goodband 0%

Field dates
Sep 17–Sep 21, 2026
Sample
829 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Lamont +17

Don't know 6% · Someone else 1% · Ned Lamont 55% · Ryan Fazio 38%

Field dates
Sep 17–Sep 21, 2026
Sample
540 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
See this pollster in the Full Poll Archive →
Certified-result history

Eligible historical observations

50 shown · 116 total

CycleRaceTypeField endSamplePollResultError
2022NH · SenateSen-G2022-11-042,077D+2.0D+9.1R+7.1
2022NH-2 · HouseHouse-G2022-11-041,027D+8.0D+11.7R+3.7
2022NH-1 · HouseHouse-G2022-11-041,043D+1.0D+8.1R+7.1
2022ME-2 · HouseHouse-G2022-11-04433D+1.0D+3.7R+2.7
2022ME-1 · HouseHouse-G2022-11-04477D+19.0D+25.9R+6.9
2022NH · GovernorGov-G2022-11-042,077R+12.0R+15.6D+3.6
2022ME · GovernorGov-G2022-11-04922D+8.0D+13.2R+5.2
2020NH · SenateSen-G2020-10-26864D+11.0D+15.7R+4.7
2020NH · PresidentPres-G2020-10-26864D+8.0D+7.4D+0.6
2020NH-2 · HouseHouse-G2020-10-26412D+10.0D+10.2R+0.2
2020NH-1 · HouseHouse-G2020-10-26451R+2.0D+5.1R+7.1
2020NH · GovernorGov-G2020-10-26864R+24.0R+31.8D+7.8
2018NH-2 · HouseHouse-G2018-11-03321D+21.0D+13.4D+7.6
2018NH-1 · HouseHouse-G2018-11-03309D+13.0D+8.6D+4.5
2018NH · GovernorGov-G2018-11-036300R+7.0D+7.0
2016NH · SenateSen-G2016-11-05692D+4.0D+0.1D+3.9
2016NH · PresidentPres-G2016-11-05692D+11.0D+0.4D+10.6
2016NH-2 · HouseHouse-G2016-11-05322D+21.0D+4.4D+16.6
2016NH-1 · HouseHouse-G2016-11-05323D+9.0D+1.3D+7.7
2016NH · GovernorGov-G2016-11-05671D+11.0R+2.3D+13.3
2016NH · SenateSen-G2016-11-01466D+7.0D+0.1D+6.9
2016NH · PresidentPres-G2016-11-01466D+7.0D+0.4D+6.6
2016NH-2 · HouseHouse-G2016-11-01221D+23.0D+4.4D+18.6
2016NH-1 · HouseHouse-G2016-11-01219D+7.0D+1.3D+5.7
2016NH · GovernorGov-G2016-11-01455D+8.0R+2.3D+10.3
2016NH · SenateSen-G2016-10-28516D+1.0D+0.1D+0.9
2016NH · PresidentPres-G2016-10-28516D+8.0D+0.4D+7.6
2016NH-2 · HouseHouse-G2016-10-28237D+15.0D+4.4D+10.6
2016NH-1 · HouseHouse-G2016-10-28239D+4.0D+1.3D+2.7
2016NH · GovernorGov-G2016-10-28503D+1.0R+2.3D+3.3
2016ME · PresidentPres-G2016-10-23670D+11.0D+3.0D+8.0
2016M2 · PresidentPres-G2016-10-23341D+3.0R+10.3D+13.3
2016M1 · PresidentPres-G2016-10-23329D+20.0D+14.8D+5.2
2016ME-2 · HouseHouse-G2016-10-23314D+2.0R+9.6D+11.6
2016ME-1 · HouseHouse-G2016-10-23299D+33.0D+16.1D+16.9
2014NH · SenateSen-G2014-10-31757D+2.0D+3.3R+1.3
2014NH-2 · HouseHouse-G2014-10-31352D+7.0D+10.0R+3.0
2014NH-1 · HouseHouse-G2014-10-31405R+1.0R+3.6D+2.6
2014NH · GovernorGov-G2014-10-31747D+4.0D+5.0R+1.0
2014NH · SenateSen-G2014-10-24555D+8.0D+3.3D+4.7
2014NH-2 · HouseHouse-G2014-10-24294D+23.0D+10.0D+13.0
2014NH-1 · HouseHouse-G2014-10-24261D+4.0R+3.6D+7.6
2014NH · GovernorGov-G2014-10-24555D+15.0D+5.0D+10.0
2014ME · SenateSen-G2014-10-18667R+35.0R+37.0D+2.0
2014ME-2 · HouseHouse-G2014-10-18291R+1.0R+5.2D+4.2
2014ME-1 · HouseHouse-G2014-10-18348D+38.0D+29.8D+8.2
2014ME · GovernorGov-G2014-10-18639R+10.0R+4.8R+5.2
2013MA · SenateSen-G2013-06-13508D+13.0D+10.2D+2.8
2012NH · PresidentPres-G2012-11-03783D+4.0D+5.6R+1.6
2012NH-2 · HouseHouse-G2012-11-03411D+7.0D+4.8D+2.2

Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5

Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.

A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.

Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.