2026 Idaho Senate
Margin = Todd Achilles − Jim Risch. 8 polls from 5 pollsters. Consensus as of Sep 30, 2026: R+19.0(95% band R+26.3 to R+10.2).
Polls and consensus
Individual poll (click to open source)Consensus, house effects removed95% band
How each pollster compares in this race
Average distance of each pollster's polls from the consensus of all other polls at the same time. The overall house effect is that pollster's lean across every race we track.
| Pollster | Polls here | Avg. vs consensus here | Overall house effect |
|---|---|---|---|
| Peak Insights | 3 | R+17.1 | R+3.4 |
| Change Research | 1 | R+4.9 | D+0.8 |
| Public Policy Polling | 1 | D+1.9 | D+0.4 |
| The Bullfinch Group | 2 | D+14.1 | D+2.8 |
| Advanced Targeting Research | 1 | D+29.9 | D+0.9 |
All polls
| Field dates | Pollster | Sample | Result | House-effect adjusted | Source |
|---|---|---|---|---|---|
| Sep 28, 2026 – Sep 30, 2026 | Peak Insights R | 500 LV | R+25.0 | R+21.5 | release via wikipedia |
| Sep 13, 2026 – Sep 16, 2026 | Advanced Targeting Research | 700 RV | D+11.0 | D+10.1 | release via wikipedia |
| Aug 11, 2026 – Aug 13, 2026 | Peak Insights R | 500 LV | R+34.0 | R+30.5 | release via wikipedia |
| Aug 4, 2026 – Aug 7, 2026 | The Bullfinch Group | 608 LV | R+4.0 | R+6.9 | release via votehub,wikipedia |
| Jul 28, 2026 – Jul 30, 2026 | Change Research D | 1,213 LV | R+24.0 | R+24.9 | release via wikipedia |
| Jun 6, 2026 – Jun 7, 2026 | Peak Insights R | 500 LV | R+48.0 | R+44.5 | release via wikipedia |
| May 29, 2026 – Jun 1, 2026 | The Bullfinch Group | 774 RV | R+4.0 | R+7.0 | release via wikipedia |
| Mar 16, 2026 – Mar 17, 2026 | Public Policy Polling | 639 RV | R+14.0 | R+13.3 | release via wikipedia |