In the most recent California 48th congressional district poll (USC Democracy and Fair Elections Lab, Oct 22 - 27, 2026, n=474 LV), Wilpert (D) leads Desmond (R) 52%–44%.
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
- 13
- Pollsters
- 7
- Field dates
- Oct 26, 2025 – Oct 27, 2026
- Stages
- General election (6), Primary (7)
- Most recent poll
- Oct 27, 2026
All polls
| Pollster | Partisan | Field dates | Stage | Sample | Results | Margin | Source |
|---|---|---|---|---|---|---|---|
| USC Democracy and Fair Elections Lab | Oct 22 - 27, 2026 | General election | n=474 LV | Wilpert (D): 52% Desmond (R): 44% Would not vote: 4% | D+8% | link | |
| Tarrance Group | Rep | Oct 17 - 20, 2026 | General election | n=410 LV | Wilpert (D): 47% Desmond (R): 44% | D+3% | link |
| SurveyUSA | Oct 1 - 7, 2026 | General election | n=518 LV | Wilpert (D): 47% Desmond (R): 38% Don't know: 15% | D+9% | link | |
| SurveyUSA | Aug 27 - Sep 1, 2026 | General election | n=522 LV | Wilpert (D): 45% Desmond (R): 42% Don't know: 13% | D+3% | link | |
| Lake Research Partners | Dem | Jul 9 - 14, 2026 | General election | n=500 LV | Wilpert (D): 48% Desmond (R): 46% Don't know: 6% | D+2% | link |
| SurveyUSA | May 8 - 14, 2026 | Primary | n=507 LV | Desmond (R): 29% Don't know: 25% O'Neil (R): 10% | +19% | link | |
| Tulchin Research | Dem | Apr 27 - 30, 2026 | Primary | n=600 LV | Desmond (R): 27% Don't know: 20% Wilpert (D): 16% | +11% | link |
| SurveyUSA | Apr 14 - 19, 2026 | Primary | n=500 LV | Desmond (R): 25% Don't know: 24% O'Neil (R): 13% | +12% | link | |
| Lake Research Partners | Dem | Feb 25 - Mar 1, 2026 | Primary | n=500 LV | Republican (R): 40% Don't know: 18% Campa-Najjar (D): 17% | +23% | link |
| Tulchin Research | Dem | Feb 16 - 22, 2026 | Primary | n=600 LV | Issa (R): 41% Don't know: 25% Campa-Najjar (D): 14% | +27% | link |
| Public Policy Polling | Dem | Feb 16 - 17, 2026 | Primary | n=727 RV | Issa (R): 40% Don't know: 28% Campa-Najjar (D): 18% | +22% | link |
| Blueprint Polling | Dem | Feb 2 - 4, 2026 | Primary | n=560 LV | Issa (R): 43.6% Campa-Najjar (D): 19.3% Don't know: 9.6% | +24.3% | link |
| Blueprint Polling | Dem | Oct 25 - 26, 2025 | General election | n=517 LV | Campa-Najjar (D): 43% Issa (R): 40% | D+3% | link |
13 of 13 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.