County record · fips 22103 · Louisiana
St. TammanyLA
Republican ×16 since 1964all 40 elections, 1868–2024
The Long Record
40 elections against the Louisiana and national vote
2024 result
R+44.5
won by Republicans
Record since first cycle
22–18
Dem–Rep two-party wins
Voted with the winner
21/40
53% of its elections
Closest election
1872
R+0.4
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 |
|---|---|---|
| 1932 | +58.1 pts | Democrats |
| 1976 | +55.6 pts | Democrats |
| 1972 | -54.9 pts | Republicans |
| 1948 | -47.0 pts | Republicans |
| 1964 | -37.2 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
272,421
College (BA+)
38%
Median income
$81,202
2024 dollars
Non-white
28%
Rural
23%
Age 65+
18%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Jefferson, LA · Orleans, LA · St. John the Baptist, LA · Tangipahoa, LA · Washington, LA · Hancock, MS · Pearl River, MS