In the most recent California 40th congressional district poll (Grassroots Targeting, Sep 5 - 9, 2026, n=715 LV), Kim (R) leads Calvert (R) 43%–34%.
Data is synced continuously from the New York Times, which aggregates surveys from major pollsters. The table shows individual pollster results. The map uses the same 2026 non-partisan polling average and candidate-selection method as the homepage maps.
At a glance
- Polls tracked
- 6
- Pollsters
- 4
- Field dates
- Jan 19, 2026 – Sep 9, 2026
- Stages
- General election (4), Primary (2)
- Most recent poll
- Sep 9, 2026
All polls
| Pollster | Partisan | Field dates | Stage | Sample | Results | Margin | Source |
|---|---|---|---|---|---|---|---|
| Grassroots Targeting | Rep | Sep 5 - 9, 2026 | General election | n=715 LV | Kim (R): 43% Calvert (R): 34% | R+9% | link |
| Public Opinion Strategies | Rep | Aug 17 - 20, 2026 | General election | n=400 LV | Calvert (R): 35% Kim (R): 34% Don't know: 19% | R+1% | link |
| American Viewpoint | Rep | Jul 8 - 12, 2026 | General election | — | Calvert (R): 33% Kim (R): 32% Don't know: 18% | R+1% | link |
| Tulchin Research | Dem | Apr 30 - May 4, 2026 | Primary | n=500 LV | Calvert (R): 24% Don't know: 23% Kim (R): 22% | +2% | link |
| Public Opinion Strategies | Rep | Jan 24 - 27, 2026 | Primary | n=400 LV | Kim (R): 23% Kerr (D): 22% Calvert (R): 22% | +1% | link |
| Tulchin Research | Dem | Jan 14 - 19, 2026 | General election | n=800 LV | Kim (R): 44% Kim-Varet (D): 43% Don't know: 13% | R+1% | link |
6 of 6 polls shown, most recent first. Every number is a single pollster's reported result — no polling average is calculated here. Partisan shows the source’s party flag; a blank means no partisan affiliation is marked.