County record · fips 21111 · Kentucky
JeffersonKY
Democratic ×9 since 1992all 40 elections, 1868–2024
The Long Record
40 elections against the Kentucky and national vote
2024 result
D+16.8
won by Democrats
Record since first cycle
25–15
Dem–Rep two-party wins
Voted with the winner
28/40
70% of its elections
Closest election
1980
R+0.6
this countyKentuckynational (official)dot colour = two-party winner · hollow = tie or unknown total · click a dot to open that election
The Biggest Swings
Cycle-over-cycle change in the two-party margin, in points
| Election | Swing | Toward |
|---|---|---|
| 1912 | +76.4 pts | Democrats |
| 1916 | -73.7 pts | Republicans |
| 1872 | -59.1 pts | Republicans |
| 1896 | -48.8 pts | Republicans |
| 1968 | -31.7 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
783,022
College (BA+)
37%
Median income
$69,866
2024 dollars
Non-white
38%
Rural
2%
Age 65+
17%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Clark, IN · Floyd, IN · Harrison, IN · Bullitt, KY · Hardin, KY · Oldham, KY · Shelby, KY · Spencer, KY