County record · fips 42005 · Pennsylvania
ArmstrongPA
Republican ×7 since 2000all 40 elections, 1868–2024
The Long Record
40 elections against the Pennsylvania and national vote
2024 result
R+53.6
won by Republicans
Record since first cycle
8–32
Dem–Rep two-party wins
Voted with the winner
27/40
68% of its elections
Closest election
1996
D+0.4
this countyPennsylvanianational (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 | +53.9 pts | Democrats |
| 1932 | +48.8 pts | Democrats |
| 1916 | -48.1 pts | Republicans |
| 1964 | +47.7 pts | Democrats |
| 1968 | -33.8 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
64,622
College (BA+)
19%
Median income
$65,008
2024 dollars
Non-white
5%
Rural
65%
Age 65+
24%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Butler, PA · Clarion, PA · Indiana, PA · Jefferson, PA · Westmoreland, PA