Biggest governor landslides
What is the biggest landslide in a governor election?
W. Lee O’Daniel’s 1940 win in Texas, with 94.4% of the vote to George C. Hopkins’s 5.6%, an 88.9-point margin. Like most of the biggest state-level landslides, it comes from the one-party-dominant Democratic South of that era.
Biggest governor landslides in every state
This list is the national top 25, so most states are not on it. Every state has its own, at a far lower vote floor so early races still count.
How this ranking is measured
Gubernatorial general elections ranked by the largest gap in vote share between the top two finishers. To keep the list to genuinely contested blowouts, we require a real second-place finisher (at least 5% of the vote), which sets aside uncontested races and any contest where the data is missing a major candidate.