Aggregate of all polls released for California's 40th congressional district House election between Democrat Ken Calvert and Republican Young Kim. This page will update the moment new polls are released, including the polling average, projected margin, and survey details.
2026 California 40th district House Polling Average
Young Kim leads Ken Calvert by 2.4% in the Pollsmax polling average for the 2026 California 40th district House election, 37.7% to 35.3%. The average currently aggregates results from 2 polls. According to the latest California 40th district House poll, conducted by Grassroots Targeting (R) on September 9, Kim leads Calvert 43% to 34%.
Democrat
—%
Weighted polling average
Republican
—%
Weighted polling average
Net margin
—
Polling average difference
Polls Included
—
Number of polls conducted
Pollsmax creates a time-weighted and partisanship-adjusted polling average from an aggregate of all polls conducted for the general election. See the polling methodology to learn more about how polls are standardized and weighted.