Polls database

Every poll we use, with its source

11,685 polls since 2015: national questions, Senate, House, governor and state legislative races, presidential primaries and ballot measures. Filter, then open any poll’s release.

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Pollster: University of Montana Remove ×

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3

House polls by University of Montana.

Polls per month

1
Aug 2018Jan 2019Jan 2020Jun 2020

Latest poll in the database ended Nov 2, 2026. Source: 99chambers polls database

DatesQuestionPollsterSponsorSamplePop.ModeResultMarginAdjustedvs resultSource
Jun 17–26, 20202020 Montana's at-large congressional district election (2020)C+ University of Montana—517RV—Williams 37 · Rosendale 45R+8——Release
Oct 10–18, 20182018 Montana's at-large congressional district election (2018)C+ University of Montana—533V—Williams 46 · Gianforte 45D+1——Release
Aug 13–31, 20182018 Montana's at-large congressional district election (2018)C+ University of Montana—466V—Williams 51 · Gianforte 38D+13——Release
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Adjusted: after house-effect and population corrections. vs result: margin minus the certified or unofficial result. Latest poll in the database ended Nov 2, 2026. Source: each poll’s own release, as cited by the poll list it was compiled from (The New York Times for Senate, governor and House races; Wikipedia for other offices)