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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Matching polls

11

Polls by DFM Research.

Polls per month

2
Nov 2015Jan 2017Jan 2018Jan 2019Jan 2020Sep 2020

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

DatesQuestionPollsterSponsorSamplePop.ModeResultMarginAdjustedvs resultSource
Sep 12–16, 20202020 North Dakota gubernatorial election (2020)C+ DFM Research—500LV—Lenz 24 · Burgum 56R+32——Release
Aug 6–9, 20202020 Pennsylvania's 10th congressional district election (2020)C+ DFM Research—384LV—DePasquale 46 · Perry 44D+2——Release
Jul 29–30, 20202020 United States Senate election in Oklahoma (2020)C+ DFM ResearchAbby Broyles572LV—Broyles 34 · Inhofe 50R+16——Release
Oct 23–27, 20182018 United States Senate election in Nebraska (2018)C+ DFM Research—683V—Raybould 39 · Fischer 54R+15——Release
Oct 23–25, 20182018 Nebraska's 2nd congressional district election (2018)C+ DFM Research—350V—Eastman 45 · Bacon 52R+7——Release
Oct 27–Nov 1, 20162016 Missouri gubernatorial election (2016)C+ DFM Research—508V—Koster 45 · Greitens 39D+6——Release
Oct 27–Nov 1, 20162016 United States Senate election in Missouri (2016)C+ DFM Research—508V—Kander 41 · Blunt 41Even——Release
Sep 6–11, 20162016 Wyoming's at-large congressional district election (2016)C+ DFM Research—402V—Greene 30 · Cheney 46R+16——Release
Mar 17–24, 20162016 Missouri gubernatorial election (2016)C+ DFM Research—674V—Koster 41 · Greitens 24D+17——Release
Mar 17–24, 20162016 United States Senate election in Missouri (2016)C+ DFM Research—674V—Kander 35 · Blunt 49R+14——Release
Nov 4–11, 20152016 Iowa's 1st congressional district election (2016)C+ DFM Research—328V—Vernon 38 · Blum 46R+8——Release
Showing 1–11 of 11

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)