COLORADO 9 Electoral Votes 
link to clickable map
Population 
(Source: U.S. Census Bureau, Colorado Secretary of State)
Total Resident Population, July 1, 2019 est.
5,758,736
Total Registration, Nov. 2020
 >


Colorado has: 64 counties.

Counties over 500,000: El Paso, Denver, Arapahoe, Jefferson.
Cities over 250,000: Denver, Colorado Springs, Aurora. 

Government
Governor: Jared Polis (D) elected in 2018.
State Legislature: Colorado General Assembly   House: 65 seats  Senate: 35 seats
Local: Local Governments   NACO
U.S. House: 4D, 3R - 1. D.DeGette (D) | 2. J.Neguse (D) | 3. S.Tipton (R) | 4. K.Buck (R) | 5. D.Lamborn (R) | 6. J.Crow (D) | 7. E.Perlmutter (D). >
U.S. Senate: Cory Gardner (R) elected in 2014, seeking re-election in 2020, Michael Bennet (D) re-elected in 2016.
2020
U.S. Senate: Sen. Cory Gardner (R) faces former Gov. John Hickenlooper (D) in what is expected to be one of the most closely fought Senate races of the cycle.
U.S. House: All seven House Members were seeking re-election.  In the June 30 primary, in CO-3 (Western CO), restaurant owner and gun rights activist Lauren Boebert (R) upset U.S Rep. Scott Tipton (R), who was first elected in 2010.  Boebert faces former state Rep. and County Commissioner Diane Mitsch Bush (D), who was also the 2018 nominee.
State Legislature: 18 of 35 Senate seats and all 65 House seats are up. 
Ballot Measures:
Coloradoans will decide 11 amendments and propositions on a range of subjects [SOS] including:
Amendment B
- would repeal Gallagher Amendment formula on residential/nonresidential property tax rates (yes | no);
Amendment 76
- citizenship requirement to vote ["only a citizen" rather than "every citizen"] (yes | no);
Prop. EE - tax on smoking and vaping products (yes | no);
Prop. 113
- National Popular Vote (yes | no);
Prop. 114 - restoration of gray wolves (yes | no);

Prop. 115 - prohibition on late term abortions (yes | no);
Prop 116 a slight reduction in the state income tax rate (yes | no) and Prop. 117 makes creation and use of enterprise funds, a funding mechanism, more difficult; and
Prop 118 creation of a paid family and medical leave program
(yes | no).

 State of Colorado
Secretary of State

CO Democratic Party
CO Republican Party
CO Libertarian Party
Green Party of CO
American Const. Party

Denver Post
Media (Newsp.)
TV
, Radio

ColoradoPols.com

Politics1-CO
Ballotpedia-CO


The Centennial State

General Election -- Tuesday, November 3, 2020

Counties begin mailing ballots on Oct. 9, 2020.

Drop boxes and polling centers open on Oct. 19, 2020.


Election Calendar

On the ballot
PDF             
 
Biden/Harris (Dem.)


Trump/Pence (Rep.)


Blankenship/Mohr (Const.)


Hammons/Bodenstab (Unity)


Hawkins/Walker (Grn.)


Huber/Atwood (Appr.)


Jorgensen/Cohen (Lib.)


and 14 more






Ballot Access
Overview: The March 3 Democratic primary produced a fairly even result among the four remaining candidates at that time and was one of Biden's weakest primary showings, just under 25% of the vote.  Still Biden is favored in November, based on recent statewide elections including the last three presidential races.
   Colorado voters face a crowded ballot including 21 presidential candidates and 11 ballot measures.  The marquee U.S. Senate race between Gardner and Hickenlooper and ballot initiatives including proposals to ban late-term abortions and create a paid family and medical leave program should boost turnout. 
 Democrats and Republicans are active as are several Democratic aligned groups (R | D, allies).

Trump  |  Biden
[State Primary Election: June 30, 2020]

Presidential Primary Election -- Tuesday, March 3, 2020
Total Registered Voters: 3,890,445   Total Ballots Cast: 1,806,325   Voter Turnout: 46.43%.
Democrats
Sanders 355,293 (37.00%), Biden 263,565 (24.64%), Bloomberg 177,727 (18.51%), Warren 168,695 (17.57%)...  Total 960,128.  details

79 Delegates: 44 District, 14 At-Large, 9 PLEO, 12 Unpledged.

Republicans
Trump 628,876 (92.26%), Weld 25,698 (3.77%), Walsh 13,072 (1.92%), Matern 7,239 (1.06%), Ardini 3,388 (0.50%), Istvan 3,350 (0.49%).  Total: 681,623.

General Election Winners in Colorado, 1992-2016
1992 1996 2000 2004 2008 2012 2016
Clinton
40.13%
Dole
45.80%
Bush
50.75%
Bush
51.71%
Obama
53.66%
Obama
51.49%
Clinton
48.16%
  and the details...
 

General Election -- Tuesday, November 8, 2016
Voting Eligible Population*: 3,978,892.
VEP Highest Office Turnout Rate: 69.9%.

Colorado law allows residents to register to vote through Election Day.


Permanent Mail-in: Ballots may be sent to voters starting Oct.17, 2016 (22 days before the Election)
Early Voting at Early Voting Polling Places
: Oct. 24, 2016-Nov. 8, 2016
(15 days before the Election)      full calendar [PDF]

3,151,275 ballots were mailed.
- 2,677,563 mail ballots were returned.
- 206,585 in-person voters (about 7%).
- approx. 29,000 UOCAVA ballots.
2,884,148 ballots cast (+).

Registration: Dem. 1,063,459 (27.69%)   Rep. 1,054,767 (27.47%)   Unaff. 1,171,608 (30.51%)   Lib. 39,608 (1.03%)   Grn. 11,835 (0.31%)   ACN 10,369 (0.27%)   UNI 915   ...Total 3,840,159 >
Official Results >

 
+Clinton/Kaine (Dem.)
1,338,870
(48.16)
Trump/Pence (Rep.)
1,202,484
(43.25)
Castle/Bradley (ACN)
11,699
(0.42)
Johnson/Weld (Lib.)
144,121
(5.18)
Stein/Baraka (Grn.)
38,437
(1.38)
Keniston/Taylor (VPA)
5,028
(0.18)
McMullin/Johnson (IAP)
28,917
(1.04)
15 cands. w/ < 0.10% of vote
10,664
(0.38)
Total........2,780,220

Atwood/Huber (AVP) 337 - De La Fuente/Steinberg (ADP) 1,255 -  Hedges/Bayes (PRO) 185 - Hoefling/Schulin (AMP) 710 - Kennedy/Hart (SWP) 452 - Kopitke/Sorenson (IAP) 1,096 - Kotlikoff/ Learner (KFP) 392 - La Riva/Banks (SAL) 531 - Lyttle/Walsh (NP) 382 - Maldonado/Terranova (IPC) 872 - Maturen/Munoz (ASP) 862 - Scott/Barnard (UAF) 749 - Silva/Silva (NTR) 751 - Smith/White (UAF) 1,819 - Soltysik/Walker 271.

Ballots cast:  2,884,148.
Overview: Colorado was a semi-battleground state.  The Clinton campaign seemed fairly confident here; it stopped running ads in July and the principals made just a handful of visits.  Meanwhile, the Trump campaign plied the state with visits, focusing particularly on the Colorado Springs area.
   The Latino vote is an important demographic in Colorado.  According to the Pew Research Center (+), the state has a Hispanic population of about 1.1 million, accounting for 21% of the total population.  550,000 of these are eligible to vote, or 14.5% of the total eligible to vote.  NALEO projected a Latino vote in Nov. 2016 of 277,500. 

   A number of controversial ballot measures may have helped boost turnout, which, based on voting eligible population (VEP), was the third highest in the country after Minnesota and New Hampshire.  The presidential ballot had 22 candidates.

   The Clinton-Kaine ticket carried 22 counties to 42 for Trump-Pence, achieving a plurality of 136,386 votes (4.91 percentage points).
   Colorado figured in the post-election Electoral College maneuvering, as two electors filed suit challenging the state's law binding electors.  Their efforts proved unsuccessful, but when the electors met on Dec. 19 one elector, Michael Baca, was replaced after he attempted to vote for John Kasich.
General Election Visits
Clinton  | 
Trump
BALLOT [PDF]
 
General Election -- Tuesday, November 6, 2012
Voting Eligible Population*: 3,654,045.
VEP Highest Office Turnout Rate: 70.3%.

Permanent Mail-in: Ballots may be sent to voters starting Oct. 15, 2012 (22 days before the Election)
Early Voting at Early Voting Polling Places
: Oct. 22, 2012-Nov. 2, 2012
(22 days before the Election)         full calendar [PDF]

-Mail-in Ballots: 2,158,867 mail in ballots were sent out and 1,868,867 mail-in ballots were received and accepted, including 633,024 Democratic and 656,650 Republican.
-Early Vote: 250,803 early vote ballots were cast, including 85,623 Democratic and 86,954 Republican.


Registration: Rep. 925,785 (33.67%)   Dem. 887,470 (32.28%)   Unaff. 900,490 (32.75%)    Lib. 19,585 (0.71%)   Grn. 7,197    ACN 5,702    other 3,017   ...Total 2,749,246
Registration Deadline: Oct. 9, 2012
Official Results >

 
Goode/Clymer (Const.) 6,234
(0.24)
+Obama/Biden (Dem.)
1,323,101
(51.49)
Romney/Ryan (Rep.)
1,185,243
(46.13)
Johnson/Gray (Lib.) 35,545
(1.38)
Stein/Honkala (Grn.) 7,508
(0.29)
Anderson/Rodriguez (Jus.)
1,262
(0.05)
Barr/Sheehan (P&F)
5,057
(0.20)
Reed/Cary (Una.)
2,588
(0.10)
8 cands. w/ < 1,000 votes ea.
2,978
(0.12)
Total........2,569,516

 SOS


Alexander/Mendoza (SPU) 308  -  Harris/Kennedy (SWP) 192  -  Hoefling/Ellis (AMP) 679  -  La Riva/Ramirez (SLB) 317  -  Miller/Bertram (ATP) 267  -  Stevens/Link (Obj.) 235  -  Tittle/Turner (WTP) 791  -  White/Scherrer (SEP) 189.  Also note Randall Terry/Missy Reilly Smith secured 4 votes as write-in candidates, not included in above total.
2012 Overview 
Colorado was very much a battleground state, and according to the United States Election Project at George Mason University, the state had the third highest turnout as a percentage of voting eligible population (after Minnesota and Wisconsin).  Obama's plurality was reduced to 137,858 votes (5.36 percentage points); he carried 27 counties to 37 for Romney-Ryan.
General Election Details
Obama  | 
Romney
BALLOT [PDF]

General Election -- Tuesday, November 4, 2008
Voting Eligible Population*: 3,441,907.
VEP Highest Office Turnout Rate: 69.8%.

Early voting: Begins at the early voters' polling place for the general election on Oct. 20, 2008 (15 days before the election) and runs through Oct. 31, 2008.

Mail-In Ballots Sent

   1,633,190

61.9%

Mail-In Ballots Rec'd    

1,339,065

50.8%

Early Voting Ballots Cast

365,215

13.8%

as a percent of 2,638,211 active reg. voters.


   MIB

EV

Dem.

376,716

111,859

Rep.

370,247

 95,622


RegistrationRep. 892,791 (34.00%)   Dem. 902,444 (34.36%)   Unaff. 814,281 (31.01%)    Lib. 9,489 (0.36%)   Grn. 5,526 (0.21%)   ACN 1,461 (0.05%)  UPA 183  ...Total 2,626,175
Registration deadline: Oct. 6, 2008 (no later than 29 days before the election).
Official Results >


McCain/Palin (Rep.)
1,073,589
(44.71)
+Obama/Biden (Dem.)
1,288,576
(53.66)
Baldwin/Castle (Const.)
6,233
(0.26)
Barr/Root (Lib.)
10,897
(0.45)
McKinney/Clemente (Grn.)
2,822
(0.12)
Allen/Stath (HQK)
348
Amondson/Pletten (Pro.)
85

Harris/Kennedy (SWP)
154

Jay/Sallis (BTP)
598

Keyes/Rohrbough (AIP)
3,051
(0.13)
La Riva/Moses (SL)
158

Lyttle/Bassford (USP)
110

McEnulty/Mangan (Unaff.)
828

Moore/Alexander (Soc.)
226

Nader/Gonzalez (Unaff.)
13,350
(0.56)
Stevens/Link (Obj.)
336

Total........2,401,361

16 candidates on the ballot.
2008 Overview
In the battleground state of Colorado, the Obama-Biden ticket gained a plurality of 214,984 votes (8.95 percentage points), carrying 26 counties to 38 for McCain-Palin.
General Election Details
Obama/Allies  |  McCain/Allies  |  Nader

The 2008 Democratic National Convention was held at the Pepsi Center in Denver on Aug. 25-28, 2008.
The 2008 Libertarian National Convention was held at the Sheraton Hotel (formerly the Adam's Mark) in Denver on May 22-26, 2008.


General Election -- Tuesday, November 2, 2004
Voting Eligible Population*: 3,192,647.
VEP Highest Office Turnout Rate: 66.7%.

Early voting at the early voters' polling place: Oct. 18-29, 2004.

According to unofficial statistics reported by county clerks and recorders 51,529 provisional ballots were cast, of which 39,086 were counted and 12,443 rejected.

Registration: Rep. 1,125,374 (36.13%)   Dem. 947,866 (30.43%)    Unaff. 1,028,886 (33.03%)   Others 12,440 (0.40%)  ...Total 3,114,566.
Registration Deadline: Oct. 4, 2004.
Official Results

+Bush/Cheney (Rep.)
1,101,255
(51.71)
Kerry/Edwards (Dem.) 
1,001,732
(47.04)
Badnarik/Campagna (Lib.) 7,664 (0.36)
Cobb/LaMarche (Grn.)  1,591
(0.07)
Nader/Camejo (CRP)
12,718
(0.60)
Peroutka/Baldwin (ACP)
2,562
(0.12)
Amondson/Pletten (COP)
378
(0.02)
Andress/Deasy (Un.)
804
(0.04)
Brown/Hollis (SP)
216
(0.01)
Dodge/Lydick (Prohib.)
140
(0.01)
Harris/Trowe (SWP)
241
(0.01)
Van Auken/Lawrence (SEP)
329
(0.02)
Total........2,129,630


2004 Overview
Democrats made a play for Colorado, and although the brothers Salazar picked up the open U.S. Senate and U.S. House seats, the Kerry-Edwards ticket fell short.  Bush achieved a plurality of 99,523 votes (4.67 percentage points).
General Election Details
Kerry/Allies  |  Bush-Cheney '04

General Election -- Tuesday, November 7, 2000
Voting Eligible Population*: 3,026,316.
VEP Highest Office Turnout Rate: 57.5%.

Early voting ran from Oct. 23, 2000 (15 days before the election) to Nov. 3, 2000 (Friday before the election).

Registration: Rep. 1,022,019 (35.44%)   Dem. 863,740 (29.95%)   Lib. 4,378 (0.15%)   Grn. 3,237 (0.11%)   NLP 1,204 (0.04%)  Unaff. 989,370 (34.31)  ...Total 2,883,948.

Official Results

+Bush/Cheney (Rep.)
883,748
 (50.75)
Gore/Lieberman (Dem.)
738,227
(42.39)
Browne/Olivier (Lib.)
12,799
(0.73)
Hagelin/Goldhaber (NLP)
2,240
(0.13)
Nader/LaDuke (Grn.)
91,434
(5.25)
Phillips/Frazier (Am.C.)
1,319
(0.08)
Buchanan/Foster (Un/Fr.)
10,465
 (0.60)
Dodge/Watkins (Prohib.)
208
(0.01)
Harris/Trowe (SWC)
216
(0.01)
McReynolds/Hollis (SP)
712
 (0.04)
Total........1,741,368


2000 Overview
Bush won Colorado with a plurality of 145,521 votes (8.36 percentage points) and carried 50 of the state's 63 counties. In contrast to 1996, when Colorado experienced a dogfight in the presidential race, the Gore camp did not target the state, making for a quiet general election campaign. During the post-convention period Colorado only merited one visit each from the running mates.  Ralph Nader made a couple of visits after the Greens convention in June (Sept. 8-10 and a final stop on Nov. 2), and his 5.25% proved to be one of his better showings.  Down-ticket there were various initiative campaigns, and Colorado Democrats managed to wrest control of the State Senate from the GOP, for their only legislative chamber pick-up in the country.
General Election Activity
1992 and 1996 General Elections

1992
Clinton (Dem.)........629,681
(40.13)
Bush (Rep.)............562,850
(35.87)
Perot (Ind.).............366,010
(23.32)
Others (2+w/ins).......10,639
(0.68)
Total........1,569,180

1996
Dole (Rep.).............691,848
(45.80)
Clinton (Dem.)........671,152
(44.43)
Perot (Ref.)..............99,629
(6.59)
Nader (Grn.).............25,070
(1.66)
Others (9)................23,005
(1.52)
Total........1,510,704
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