Jefferson County, Colorado: Professional Migration
Colorado · Presidential Elections 1880–2024
D+19.4
2024 Margin
D+0.9%
2020→2024 Swing
D since 2008
Voting Streak
🏘️ Prof. Migration
Classification
583K
Population
Jefferson County, Colorado voted D+19.4 for Kamala Harris in 2024, with Harris receiving 210,875 votes (58.3%). This represented a D+0.9% swing toward Democrats compared to 2020. The county has voted Democratic in every presidential election since 2008.
Electoral Behavior
🏘️
Professional MigrationView all
Growing metro exurbs and suburbs receiving educated professionals from cities. These areas are shifting blue as remote work and urban flight bring liberal voters. Examples: Atlanta suburbs, DFW exurbs, Denver metro.
Volatility
5.1
Elasticity
Highly elastic
Trend
+0.7/yr
Quick Stats
2024 ResultD+19.4
2020→2024 SwingD+0.9%
Voting StreakD since 2008
Elections on Record37
Demographics
Population582,910
Median Age
40.2(US: 38.4)
College (BA+)
69.4%(US: 47.9%)
Median Income
$103,167(US: $78k)
White (non-Hisp)
75.9%(US: 57.5%)
Hispanic
15.9%(US: 18.6%)
Black
1.3%(US: 12.3%)
Asian
2.9%(US: 5.7%)
Homeownership
70.6%(US: 64.2%)
Poverty Rate
6.7%(US: 12.4%)
Veterans
6.8%(US: 6.4%)
Presidential Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 58.3%(210,875) | 38.8%(140,505) | D+19.4 | +0.9 |
| 2020 | 57.9%(218,393) | 39.3%(148,414) | D+18.5 | +11.7 |
| 2016 | 48.9%(160,776) | 42.0%(138,177) | D+6.9 | +2.0 |
| 2012 | 51.2%(159,296) | 46.4%(144,197) | D+4.8 | -4.1 |
| 2008 | 53.6%(158,153) | 44.6%(131,627) | D+9.0 | +14.2 |
| 2004 | 46.6%(126,558) | 51.8%(140,644) | R+5.2 | +3.0 |
| 2000 | 42.9%(100,970) | 51.0%(120,138) | R+8.1 | -2.4 |
| 1996 | 42.7%(89,494) | 48.4%(101,517) | R+5.7 | -4.9 |
| 1992 | 36.2%(80,834) | 37.0%(82,705) | R+0.8 | +13.9 |
| 1988 | 41.6%(81,824) | 56.4%(110,820) | R+14.8 | +24.4 |
Senate Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2014 | 47.3%(121,109) | 46.9%(120,240) | D+0.3 | -10.0 |
| 2008 | 52.6%(151,616) | 42.3%(121,889) | D+10.3 | +15.3 |
| 2002 | 45.5%(86,278) | 50.5%(95,680) | R+5.0 | +4.3 |
| 1996 | 44.0%(86,773) | 53.3%(105,119) | R+9.3 | +6.3 |
| 1990 | 40.5%(60,096) | 56.0%(83,212) | R+15.6 | +23.5 |
| 1984 | 29.9%(53,903) | 69.0%(124,278) | R+39.1 | -6.9 |
| 1978 | 33.5%(36,642) | 65.7%(71,825) | R+32.2 | -20.5 |
| 1972 | 43.6%(48,533) | 55.3%(61,567) | R+11.7 | +15.6 |
| 1966 | 36.4%(23,106) | 63.6%(40,467) | R+27.3 | -11.1 |
| 1960 | 41.6%(23,327) | 57.8%(32,430) | R+16.2 | -7.9 |
Governor Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2018 | 54.4%(166,455) | 41.5%(127,038) | D+12.9 | +6.7 |
| 2014 | 50.8%(130,196) | 44.6%(114,398) | D+6.2 | -37.9 |
| 2010 | 50.8%(116,120) | 6.8%(15,419) | D+44.1 | +26.2 |
| 2006 | 57.5%(119,420) | 39.7%(82,314) | D+17.9 | +50.5 |
| 2002 | 32.1%(60,656) | 64.7%(122,356) | R+32.6 | -29.5 |
| 1998 | 47.2%(88,561) | 50.3%(94,387) | R+3.1 | -21.6 |
| 1994 | 56.2%(87,815) | 37.7%(58,861) | D+18.5 | -9.8 |
| 1990 | 62.7%(92,770) | 34.3%(50,778) | D+28.4 | +13.8 |
| 1986 | 56.9%(82,031) | 42.3%(60,987) | D+14.6 | -19.8 |
| 1982 | 65.8%(85,455) | 31.4%(40,796) | D+34.4 | +17.5 |
Primary Election History
| Year | Party | Winner | Runner-up | Nominee? |
|---|---|---|---|---|
| 2024 | GOP | Donald Trump(57.9%) | Nikki Haley(38.6%) | ✓ |
| 2020 | Dem | Bernie Sanders(35.8%) | Joe Biden(24.4%) | ✗ |
| 2016 | Dem | Bernie Sanders(59.9%) | Hillary Clinton(39.6%) | ✗ |
| 2008 | Dem | Barack Obama(63.3%) | Hillary Clinton(36.4%) | ✓ |
✓ = County picked eventual party nominee