County record · fips 42091 · Pennsylvania
MontgomeryPA
Democratic ×9 since 1992all 40 elections, 1868–2024
The Long Record
40 elections against the Pennsylvania and national vote
2024 result
D+23.0
won by Democrats
Record since first cycle
14–26
Dem–Rep two-party wins
Voted with the winner
25/40
63% of its elections
Closest election
1880
D+0.0
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 | +37.2 pts | Democrats |
| 1964 | +35.3 pts | Democrats |
| 1916 | -33.8 pts | Republicans |
| 1968 | -29.9 pts | Republicans |
| 1896 | -27.0 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
867,573
College (BA+)
53%
Median income
$113,915
2024 dollars
Non-white
29%
Rural
3%
Age 65+
19%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Berks, PA · Bucks, PA · Chester, PA · Delaware, PA · Lehigh, PA · Philadelphia, PA