County record · fips 16027 · Idaho
CanyonID
Republican ×22 since 1940reported 1896–2024 · 33 elections
The Long Record
33 elections against the Idaho and national vote
2024 result
R+47.8
won by Republicans
Record since first cycle
5–28
Dem–Rep two-party wins
Voted with the winner
21/33
64% of its elections
Closest election
1940
R+0.7
this countyIdahonational (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 | +69.3 pts | Democrats |
| 1900 | -60.4 pts | Republicans |
| 1904 | -49.8 pts | Republicans |
| 1920 | -36.3 pts | Republicans |
| 1924 | -34.6 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
250,790
College (BA+)
23%
Median income
$76,488
2024 dollars
Non-white
33%
Rural
19%
Age 65+
15%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Ada, ID · Gem, ID · Owyhee, ID · Payette, ID · Malheur, OR