County record · fips 39147 · Ohio
SenecaOH
Republican ×7 since 2000all 40 elections, 1868–2024
The Long Record
40 elections against the Ohio and national vote
2024 result
R+37.9
won by Republicans
Record since first cycle
15–25
Dem–Rep two-party wins
Voted with the winner
22/40
55% of its elections
Closest election
1996
D+1.7
this countyOhionational (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 |
|---|---|---|
| 1964 | +43.1 pts | Democrats |
| 1932 | +38.2 pts | Democrats |
| 1968 | -35.3 pts | Republicans |
| 1940 | -32.0 pts | Republicans |
| 1920 | -30.4 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
54,770
College (BA+)
21%
Median income
$66,025
2024 dollars
Non-white
12%
Rural
46%
Age 65+
19%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Crawford, OH · Hancock, OH · Huron, OH · Sandusky, OH · Wood, OH · Wyandot, OH