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Johnson: 50–60% 60–70% 70–80% 80–90% Swope: 50–60% 60–70% 70–80% 80–90% | |||||||||||||||||
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The1939 Kentucky gubernatorial election was held on November 7, 1939. IncumbentDemocratKeen Johnson defeatedRepublican nomineeKing Swope with 56.51% of the vote.
Primary elections were held on August 5, 1939.[1]

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Keen Johnson | 270,731 | 52.47 | |
| Democratic | John Y. Brown Sr. | 236,734 | 45.88 | |
| Democratic | Charles D. Arnett | 6,802 | 1.32 | |
| Democratic | Ulysses G. Foster | 1,754 | 0.34 | |
| Total votes | 516,021 | 100.00 | ||

| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | King Swope | 121,297 | 59.46 | |
| Republican | John Sherman Cooper | 73,305 | 35.94 | |
| Republican | L. O. Smith | 7,187 | 3.52 | |
| Republican | G. Tom Hawkins | 2,195 | 1.08 | |
| Total votes | 203,984 | 100.00 | ||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Democratic | Keen Johnson (incumbent) | 460,834 | 56.51% | ||
| Republican | King Swope | 354,704 | 43.49% | ||
| Majority | 106,130 | ||||
| Turnout | |||||
| Democratichold | Swing | ||||