YOLO COUNTY, CALIFORNIA — NOVEMBER 5, 2026. The race for the U.S. House of Representatives in California’s District 4 is being counted across portions of nine counties. In Yolo County’s part of the district, challenger Eric Jones (D) has 12,826 votes (43.9%) and incumbent Mike Thompson (D) has 16,402 (56.1%) in the most recent accessible county-level snapshot. Mike Thompson held a 3,576-vote lead in this county portion, not necessarily in the combined congressional district. The source’s most recent timestamp for Yolo is Nov. 4, 1:50 a.m. Pacific, and the results are not certified.

What the reported totals actually measure

These are 29,228 valid candidate votes within the Yolo County portion of District 4. It would be wrong to describe 29,228 as all ballots cast in Yolo County or to treat its share as the entire county’s voting preference. The data are from the November 2026 Congressional District 4 by-county election tracker, with the statewide two-candidate tally corroborated by KQED/Associated Press. The county result is a dated unofficial snapshot.

How Yolo’s count compares with the district

Across all nine county portions at the last combined update, Jones had 61,856 votes (about 51.6%) and Thompson 58,031 (about 48.4%), a districtwide reported difference of 3,825 votes. The Yolo County local order favors Thompson instead, but that is not a prediction of how the remaining valid ballots will be split. Different counties report at different times, and the number of valid ballots still to be counted in each portion of this congressional district is not established by a single media tracker.

The local significance of Yolo’s returns

Mike Thompson’s Yolo County portion of the House district showed a 3,576-vote local lead despite the challenger leading overall. Yolo has its own updated county supervisor races, Woodland and Winters questions, and cross-county college ballot measures, all of which require separate vote denominators.

Other elections in Yolo County

Woodland, Davis, West Sacramento, Winters and rural residents may vote in different district and city contests. The District 4 subtotal must not be interpreted as the vote of every Yolo County voter across all offices. County, city, township and school elections are not copies of the same federal contest; the candidates, district boundaries and legal thresholds can differ. Where separate local counts are available, California58 will report them in those locations’ editions rather than reusing the District 4 percentage as a local outcome.

When will this result be final?

The California Secretary of State explains that mailed ballots postmarked by Election Day, valid provisional ballots and ballots cast after conditional registration remain part of the official canvass. A reported precinct percentage is not proof that every eligible ballot has been reviewed. County officials must complete the official results by December 3; statewide certification is scheduled for December 11. Local results can change before then. The next official batch should be compared to the Nov. 4, 1:50 a.m. source snapshot, never blended with another reporting time.

Follow the wider nine-county race

Read California58’s full District 4 election report with a nine-county table. Each county contributes a different slice and a different quantity of votes, which the summary reconciles without counting any ballot twice. The by-county results and the California Secretary of State’s official election results remain available for independent checks.

Sources checked November 5, 2026: The Ballot Book congressional district 4 by-county results, last county report Nov. 4, 1:50 a.m.; KQED/AP combined district vote; California Secretary of State. This is a county-specific portion of a federal election, not a final result.

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