County record · fips 08123 · Colorado
WeldCO
Republican ×15 since 1968reported 1880–2024 · 37 elections
The Long Record
37 elections against the Colorado and national vote
2024 result
R+21.5
won by Republicans
Record since first cycle
7–30
Dem–Rep two-party wins
Voted with the winner
23/37
62% of its elections
Closest election
1932
D+2.2
this countyColoradonational (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 |
|---|---|---|
| 1896 | +168.0 pts | Democrats |
| 1892 | -69.6 pts | Republicans |
| 1900 | -58.2 pts | Republicans |
| 1920 | -55.9 pts | Republicans |
| 1932 | +42.8 pts | Democrats |
Who Lives Here
Census & ACS county profile, 2024
Population
350,396
College (BA+)
33%
Median income
$97,097
2024 dollars
Non-white
38%
Rural
20%
Age 65+
13%
Interpolated between Census/ACS anchors; income CPI-deflated to 2024. Demographics begin in 2000 — earlier cycles have returns only.
Neighbouring counties
Adams, CO · Boulder, CO · Broomfield, CO · Larimer, CO · Logan, CO · Morgan, CO · Kimball, NE · Laramie, WY