County record · fips 18057 · Indiana
HamiltonIN
Republican ×28 since 1916all 40 elections, 1868–2024
The Long Record
40 elections against the Indiana and national vote
2024 result
R+6.2
won by Republicans
Record since first cycle
1–39
Dem–Rep two-party wins
Voted with the winner
24/40
60% of its elections
Closest election
1912
D+4.6
this countyIndiananational (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 | +29.2 pts | Democrats |
| 1968 | -28.3 pts | Republicans |
| 2008 | +27.0 pts | Democrats |
| 1912 | +24.6 pts | Democrats |
| 1916 | -21.6 pts | Republicans |
Who Lives Here
Census & ACS county profile, 2024
Population
365,056
College (BA+)
62%
Median income
$121,530
2024 dollars
Non-white
21%
Rural
6%
Age 65+
14%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Boone, IN · Clinton, IN · Hancock, IN · Madison, IN · Marion, IN · Tipton, IN