United States presidential election in California, 1940

In the 1940 United States presidential election, California voted for the Democratic incumbent, Franklin Roosevelt, over the Republican challenger, businessman Wendell Willkie.

Willkie did nonetheless make considerable gains vis-à-vis the previous Republican nominee, Alf Landon, who remains the solitary Republican nominee to not carry a single county in the state. Willkie carried seven counties scattered across the state and gained twenty percentage points on Landon’s performance.

This remains the last election when the Democrats have won Sutter County, which as of 2017 stands as the longest run voting for one party by any California county. Mono County would not vote Democratic again until John Kerry in 2004.