County record · fips 22051 · Louisiana
JeffersonLA
Republican ×16 since 1964all 40 elections, 1868–2024
The Long Record
40 elections against the Louisiana and national vote
2024 result
R+13.2
won by Republicans
Record since first cycle
18–22
Dem–Rep two-party wins
Voted with the winner
23/40
57% of its elections
Closest election
1952
D+6.2
this countyLouisiananational (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 |
|---|---|---|
| 1892 | +97.0 pts | Democrats |
| 1872 | -81.1 pts | Republicans |
| 1960 | +49.2 pts | Democrats |
| 1948 | -42.5 pts | Republicans |
| 1976 | +41.6 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
430,920
College (BA+)
31%
Median income
$65,252
2024 dollars
Non-white
53%
Rural
2%
Age 65+
19%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Lafourche, LA · Orleans, LA · Plaquemines, LA · St. Charles, LA · St. John the Baptist, LA · St. Tammany, LA