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Equally of July 2021, 31 states (plus the District of Columbia and the U.S. Virgin Islands) allowed voters to bespeak their partisan affiliations on voter registration forms and reported total registration numbers publicly. The remaining 19 states either did not ask voters to bespeak partisan affiliation on their registration forms or did not publicly report those totals, according to analysis washed by Ballotpedia.

This article provides details nigh the number of registered voters by partisan affiliations in those states that allow voters to annals by political party and report those totals publicly. Historical information dating dorsum to 2000 was provided to Ballotpedia by Richard Winger, the editor and publisher of Ballot Access News.

HIGHLIGHTS

  • As of July 2021, 49.iii million registered voters identified themselves as Democrats. At 39.6%, Democrats represented the single largest share of registered voters in those states that allow voters to indicate partisan affiliation on their registration forms. A total of 36.iv meg registered voters identified themselves equally Republicans, representing 29.two% of registered voters in these states.
  • Approximately 38.8 meg registered voters identified themselves every bit independents or members of third-parties. This amounted to 31.ii% of registered voters in these states.
  • In the 2020 presidential election, Joe Biden (D) received a combined 53.five% of the vote to Donald Trump'southward (R) 44.7% beyond these states. Both candidates received a larger percentage of votes than the percentage of their respective party's registered voters. Independent and 3rd-party voters made up 31.2% of all registered voters in these states, while independent and third-party presidential candidates received 1.9% of the vote.
  • In those states that prompt voters to indicate partisan affiliation on registration forms, amalgamation with a political party may be a condition of participation in that party'south primaries. To learn more than about main participation criteria, click here.
  • Voter registration figures, 2021

    The map below shows the 31 states that displayed voter registration figures publicly as of July 2021. In 22 states, no unmarried grouping of voters fabricated upward a majority of registrants: in 10 states, Democrats fabricated up a plurality of registered voters and Republicans fabricated up a plurality in iv. Voters registered as independent or with a tertiary party made up a plurality of registrants in eight states. Democrats made up a majority of registered voters in two states—Maryland and New York—and Republicans made upwardly a bulk in four—Idaho, Oklahoma, Utah, and Wyoming. Independent or third party registrants fabricated up a majority in three states—Alaska, Arkansas, and Massachusetts.

    The table beneath shows voter registration figures in the 31 states that permit voters to signal partisan amalgamation on their voter registration forms.

    Voter registration figures by partisan amalgamation, as of June 2021[1]
    State Autonomous Republican Contained/
    nonpartisan
    American Contained Constitution Green Libertarian Working Families Other[2]
    Alaska [3] 81,255 149,173 338,931 - 646 1,524 6,948 - 21,127
    Arizona [four] i,489,356 1,603,522 - - - - 42,220 - 1,566,514
    Arkansas [v] 90,420 117,277 ane,556,117 - - 94 687 - one
    California [half dozen] 10,288,144 5,347,377 five,381,720 680,573 - 85,828 204,345 - 226,317
    Colorado [vii] 1,202,364 1,075,475 - - 13,807 ten,164 48,367 - 1,800,711
    Connecticut [8] 926,567 510,012 one,025,878 - - - - - 42,619
    Delaware [ix] 355,522 208,305 173,663 - 271 735 2,046 353 three,593
    District of Columbia [10] 400,274 29,368 85,321 - - 3,872 2,147 - 1,556
    Florida [11] 5,267,864 5,178,159 three,829,504 - - - - - 246,276
    Idaho [12] 136,582 523,887 307,746 - 3,650 - ten,587 - 0
    Iowa [thirteen] 717,368 739,193 722,136 - - - - - nineteen,644
    Kansas [fourteen] 499,699 856,026 530,240 - - - 20,925 - 0
    Kentucky [15] one,652,069 i,575,249 130,908 - ane,009 2,007 xiv,272 - 184,862
    Louisiana [16] 1,223,296 1,007,682 - - - - - - 806,752
    Maine [17] 406,067 322,708 364,274 - - 45,752 - - 0
    Maryland [18] 2,262,797 1,015,812 766,788 - - v,917 fourteen,950 - 43,498
    Massachusetts [19] one,494,980 459,663 2,717,293 - - - - - 60,004
    Nebraska [20] 359,656 595,041 269,321 - - - eighteen,101 - 194
    Nevada [21] 719,868 620,245 524,941 93,640 - - xx,577 - 47,817
    New Hampshire [22] 326,735 309,281 408,092 - - - - - 0
    New Bailiwick of jersey [23] two,554,293 one,464,449 2,433,541 - sixteen,960 11,786 xx,323 - 33,040
    New Mexico [24] 603,593 418,240 295,004 - - - thirteen,015 - 14,357
    New York [25] half-dozen,748,526 two,914,704 3,015,356 - - - - 48,207 667,318
    North Carolina [26] 2,483,506 2,162,456 two,393,552 - 26 8 46,037 - 0
    Oklahoma [27] 699,424 1,102,039 355,943 - - - xvi,362 - 0
    Oregon [28] 1,035,614 737,794 963,421 - 3,784 7,998 21,706 8,605 157,624
    Pennsylvania [29] iv,040,673 3,420,953 885,116 - - - - - 384,406
    Rhode Isle [30] 301,303 99,285 303,571 - - - - - 0
    South Dakota [31] 158,130 281,337 141,850 - - - 2,503 - 1,423
    U.South. Virgin Islands [32] 34,281 1,975 16,246 - - - - - 1,352
    Utah [33] 271,055 909,962 557,658 64,985 7,065 - 21,951 - 2,528
    W Virginia [34] 408,307 434,634 257,527 - - - 8,882 - 39,442
    Wyoming [35] 46,251 195,308 34,766 - 697 - 2,553 - 39
    Total 49,285,839 36,386,591 xxx,786,424 839,198 47,915 175,685 559,504 57,165 6,373,014

    Correlations with electoral outcomes

    The tables compare partisan affiliation figures and electoral outcomes in the 31 states that let voters to betoken partisan amalgamation on their voter registration forms.

    State legislative seats

    The table below compares partisan amalgamation figures in the 31 states that permit voters to point partisan amalgamation on their voter registration forms with the partisan composition of their state legislatures.

    Voter registration figures by partisan affiliation and partisan composition of state legislative seats, as of June 2021
    Country Democratic Republican Other[36]
    # of seats % of seats Registration % # of seats % of seats Registration % # of seats % of seats Registration %
    Alaska 35 25.0% thirteen.six% 102 72.9% 24.9% 0 0.0% 61.6%
    Arizona 43 47.8% 31.7% 47 52.2% 34.1% 0 0.0% 34.2%
    Arkansas 29 21.v% five.ane% 105 77.viii% 6.6% one 0.7% 88.2%
    California 90 75.0% 46.iii% 28 23.3% 24.1% one 0.8% 29.6%
    Colorado 61 61.0% 29.0% 39 39.0% 25.nine% 0 0.0% 45.1%
    Connecticut 120 64.two% 37.0% 66 35.3% 20.4% 0 0.0% 42.7%
    Delaware 40 64.5% 47.8% 22 35.5% 28.0% 0 0.0% 24.three%
    District of Columbia - - 76.6% - - 5.6% - - 17.viii%
    Florida 58 36.iii% 36.iii% 102 63.8% 35.seven% 0 0.0% 28.1%
    Idaho nineteen 18.1% 13.ix% 86 81.9% 53.3% 0 0.0% 32.8%
    Iowa 59 39.3% 32.six% 91 60.7% 33.6% 0 0.0% 33.7%
    Kansas 50 30.three% 26.2% 115 69.seven% 44.9% 0 0.0% 28.nine%
    Kentucky 33 23.9% 46.four% 105 76.one% 44.2% 0 0.0% nine.4%
    Louisiana 45 31.3% forty.iii% 95 66.0% 33.2% 3 2.i% 26.6%
    Maine 102 54.viii% 35.seven% 79 42.v% 28.3% 5 ii.7% 36.0%
    Maryland 131 69.7% 55.one% 57 30.three% 24.7% 0 0.0% 20.2%
    Massachusetts 166 83.0% 31.vi% 33 16.5% 9.vii% 1 0.5% 58.seven%
    Nebraska 17 34.7% 29.0% 32 65.3% 47.ix% 0 0.0% 23.2%
    Nevada 38 sixty.3% 35.5% 25 39.vii% xxx.6% 0 0.0% 33.9%
    New Hampshire 196 46.ii% 31.3% 226 53.3% 29.6% 0 0.0% 39.one%
    New Jersey 77 64.2% 39.1% 43 35.8% 22.4% 0 0.0% 38.5%
    New United mexican states 72 64.3% 44.9% 39 34.8% 31.1% 1 0.ix% 24.0%
    New York 149 70.0% 50.4% 63 29.6% 21.8% ane 0.5% 27.ix%
    North Carolina 73 42.ix% 35.ane% 97 57.ane% 30.5% 0 0.0% 34.4%
    Oklahoma 28 18.8% 32.2% 121 81.2% 50.vii% 0 0.0% 17.i%
    Oregon 55 61.1% 35.3% 33 36.7% 25.1% 1 1.i% 39.vi%
    Pennsylvania 110 43.5% 46.iii% 141 55.seven% 39.2% 1 0.4% 14.5%
    Rhode Isle 98 86.7% 42.8% xv 13.3% 14.1% 0 0.0% 43.1%
    South Dakota 5 5.1% 27.0% 94 94.9% 48.1% 0 0.0% 24.9%
    U.South. Virgin Islands - - 63.seven% - - iii.seven% - - 32.7%
    Utah 23 22.one% 14.8% 81 77.9% 49.6% 0 0.0% 35.half-dozen%
    West Virginia 33 24.6% 35.5% 101 75.four% 37.8% 0 0.0% 26.half dozen%
    Wyoming 9 10.0% sixteen.v% 79 87.8% 69.8% 2 ii.two% 13.6%
    Total two,064 46.4% 39.6% 2,362 53.0% 29.2% 17 0.4% 31.2%

    Congressional seats

    The table beneath compares partisan affiliation figures in the 31 states that report voter registration data with the partisan composition of their U.S. Business firm congressional delegations.

    Voter registration figures by partisan affiliation and partisan composition of U.S. House seats, as of June 2021
    State Autonomous Republican Other[37]
    # of seats % of seats Registration % # of seats % of seats Registration % # of seats % of seats Registration %
    Alaska 0 0.0% 13.6% one 100.0% 24.9% 0 0.0% 61.6%
    Arizona five 55.half-dozen% 31.7% 4 44.4% 34.1% 0 0.0% 34.2%
    Arkansas 0 0.0% 5.ane% iv 100.0% 6.6% 0 0.0% 88.2%
    California 42 79.two% 46.3% 11 twenty.viii% 24.i% 0 0.0% 29.6%
    Colorado four 57.1% 29.0% iii 42.9% 25.ix% 0 0.0% 45.ane%
    Connecticut 5 100.0% 37.0% 0 0.0% twenty.four% 0 0.0% 42.7%
    Delaware i 100.0% 47.eight% 0 0.0% 28.0% 0 0.0% 24.3%
    District of Columbia - - 76.half dozen% - - five.6% - - 17.8%
    Florida 10 37.0% 36.iii% 16 59.iii% 35.seven% 0 0.0% 28.1%
    Idaho 0 0.0% 13.9% ii 100.0% 53.3% 0 0.0% 32.viii%
    Iowa i 25.0% 32.6% 3 75.0% 33.half dozen% 0 0.0% 17.eight%
    Kansas 1 25.0% 36.3% iii 75.0% 35.vii% 0 0.0% 28.1%
    Kentucky i 16.7% 46.4% five 83.iii% 44.2% 0 0.0% ix.4%
    Louisiana 1 16.vii% 40.iii% v 83.3% 33.ii% 0 0.0% 26.6%
    Maine 2 100.0% 35.seven% 0 0.0% 28.3% 0 0.0% 36.0%
    Maryland seven 87.5% 55.one% one 12.v% 24.7% 0 0.0% 20.2%
    Massachusetts nine 100.0% 31.6% 0 0.0% 9.seven% 0 0.0% 58.7%
    Nebraska 0 0.0% 29.0% 3 100.0% 47.9% 0 0.0% 23.2%
    Nevada three 75.0% 35.5% 1 25.0% xxx.6% 0 0.0% 33.9%
    New Hampshire two 100.0% 31.3% 0 0.0% 29.half dozen% 0 0.0% 39.1%
    New Jersey 10 83.3% 39.1% ii sixteen.7% 22.4% 0 0.0% 38.5%
    New Mexico 2 66.seven% 44.9% i 33.3% 31.1% 0 0.0% 24.0%
    New York 19 70.4% 50.4% 8 29.6% 21.8% 0 0.0% 27.9%
    Northward Carolina 5 38.v% 35.one% 8 61.5% 30.5% 0 0.0% 34.iv%
    Oklahoma 0 0.0% 32.two% v 100.0% fifty.7% 0 0.0% 17.1%
    Oregon 4 80.0% 35.iii% i xx.0% 25.1% 0 0.0% 39.6%
    Pennsylvania 9 fifty.0% 46.3% 9 fifty.0% 39.2% 0 0.0% 14.five%
    Rhode Island two 100.0% 42.8% 0 0.0% xiv.1% 0 0.0% 43.ane%
    South Dakota 0 0.0% 27.0% one 100.0% 48.1% 0 0.0% 24.9%
    U.S. Virgin Islands - - 63.7% - - three.7% - - 32.7%
    Utah ane 25.0% 14.viii% 3 75.0% 49.six% 0 0.0% 35.vi%
    West Virginia 0 0.0% 35.v% 3 100.0% 37.8% 0 0.0% 26.6%
    Wyoming 0 0.0% xvi.5% 1 100.0% 69.8% 0 0.0% 13.half dozen%
    Total 146 58.2% 39.half-dozen% 104 41.four% 29.2% 0 0.0% 31.two%

    Presidential pop vote

    The table below compares partisan affiliation figures in the 31 states that report voter registration data with the pop vote for president in the 2020 presidential election.

    Voter registration figures by partisan affiliation and presidential popular vote figures, as of June 2021
    State Democratic Republican Other[38]
    Raw pop vote % popular vote Registration % Raw popular vote % popular vote Registration % Raw popular vote % popular vote Registration %
    Alaska 153,778 42.8% 13.6% 189,951 52.eight% 24.ix% xv,801 4.iv% 61.6%
    Arizona 1,672,143 49.4% 31.seven% 1,661,686 49.1% 34.1% 53,497 1.6% 34.2%
    Arkansas 423,932 34.viii% 5.i% 760,647 62.4% half-dozen.6% 34,490 ii.8% 88.2%
    California eleven,110,250 63.v% 46.3% 6,006,429 34.3% 24.1% 384,202 2.ii% 29.half dozen%
    Colorado 1,804,352 55.4% 29.0% 1,364,607 41.9% 25.nine% 87,993 2.7% 45.1%
    Connecticut 1,080,831 59.three% 37.0% 714,717 39.2% 20.iv% 28,309 1.6% 42.7%
    Delaware 296,268 58.seven% 47.8% 200,603 39.8% 28.0% 7,475 1.5% 24.3%
    District of Columbia 317,323 94.v% 76.6% 18,586 5.5% 5.half-dozen% 0 0.0% 17.8%
    Florida 5,297,045 47.9% 36.3% v,668,731 51.2% 35.vii% 101,680 0.9% 28.1%
    Idaho 287,021 33.i% thirteen.nine% 554,119 63.8% 53.iii% 26,874 iii.i% 32.eight%
    Iowa 759,061 44.9% 32.half dozen% 897,672 53.1% 33.6% 34,138 two.0% 17.8%
    Kansas 570,323 41.six% 36.3% 771,406 56.2% 35.7% 30,574 two.2% 28.1%
    Kentucky 772,474 36.2% 46.four% 1,326,646 62.1% 44.2% 37,648 1.8% 9.4%
    Louisiana 856,034 39.ix% 40.three% 1,255,776 58.five% 33.2% 36,252 1.seven% 26.6%
    Maine 435,072 53.1% 35.vii% 360,737 44.0% 28.3% 23,652 two.9% 36.0%
    Maryland ane,985,023 65.four% 55.ane% 976,414 32.2% 24.7% 75,593 2.5% 20.two%
    Massachusetts 2,382,202 65.6% 31.6% ane,167,202 32.1% 9.7% 81,998 ii.iii% 58.vii%
    Nebraska 374,583 39.4% 29.0% 556,846 58.five% 47.9% 20,283 2.one% 23.2%
    Nevada 703,486 fifty.1% 35.5% 669,890 47.7% 30.6% 32,000 2.3% 33.9%
    New Hampshire 424,937 52.vii% 31.iii% 365,660 45.4% 29.six% 15,608 1.nine% 39.1%
    New Bailiwick of jersey 2,608,335 57.3% 39.ane% 1,883,274 41.iv% 22.four% 57,744 1.3% 38.5%
    New Mexico 501,614 54.3% 44.9% 401,894 43.5% 31.ane% 20,457 2.2% 24.0%
    New York 5,230,985 sixty.9% 50.4% 3,244,798 37.eight% 21.8% 119,043 1.four% 27.nine%
    North Carolina 2,684,292 48.6% 35.i% two,758,775 49.9% 30.5% 81,737 1.5% 34.iv%
    Oklahoma 503,890 32.3% 32.2% 1,020,280 65.four% 50.seven% 36,529 two.3% 17.1%
    Oregon i,340,383 56.5% 35.3% 958,448 40.4% 25.1% 75,490 3.ii% 39.six%
    Pennsylvania three,458,229 fifty.0% 46.3% three,377,674 48.viii% 39.two% 79,380 one.i% fourteen.5%
    Rhode Island 307,486 59.4% 42.8% 199,922 38.6% 14.1% 10,349 2.0% 43.1%
    South Dakota 150,471 35.6% 27.0% 261,043 61.8% 48.1% eleven,095 2.6% 24.nine%
    U.S. Virgin Islands - - 63.7% - - 3.7% - - 32.7%
    Utah 560,282 37.six% 14.8% 865,140 58.i% 49.half-dozen% 62,867 four.2% 35.6%
    West Virginia 235,984 29.seven% 35.5% 545,382 68.6% 37.8% thirteen,286 1.7% 26.6%
    Wyoming 73,491 26.iv% 16.5% 193,559 69.5% 69.eight% eleven,453 4.1% 13.half dozen%
    Total 49,361,580 53.5% 39.6% 41,198,514 44.7% 29.2% 1,708,047 1.9% 31.ii%

    State legislative trifectas and legislative chamber command

    The tabular array below compares partisan affiliation figures in the 31 states that let voters to signal partisan affiliation on their voter registration forms with the presence of trifectas and the partisan command of legislative chambers. A country regime trifecta is a term to depict single political party government, when 1 political party holds three positions in a land's authorities

    Voter registration figures by trifecta status, partisan affiliation, and partisan control of legislative chambers, June 2021
    State Governor'due south political party Trifecta? Autonomous Republican Other[39]
    Registration % # of chambers Registration % # of chambers Registration % # of chambers
    Alaska Republican No thirteen.half dozen% 0 24.ix% 1 61.vi% i
    Arizona Republican Yes 31.7% 0 34.i% ii 34.two% 0
    Arkansas Republican Yes five.1% 0 6.half-dozen% two 88.two% 0
    California Democrat Yes 46.three% ii 24.i% 0 29.6% 0
    Colorado Democrat Yes 29.0% two 25.ix% 0 45.i% 0
    Connecticut Democrat Yes 37.0% 2 twenty.4% 0 42.7% 0
    Delaware Democrat Yes 47.viii% 2 28.0% 0 24.iii% 0
    Commune of Columbia - - 76.six% - 5.6% - 17.viii% -
    Florida Republican Yes 36.3% 0 35.7% 2 28.1% 0
    Idaho Republican Yep xiii.9% 0 53.3% two 32.eight% 0
    Iowa Republican Yes 32.6% 0 33.vi% two 17.viii% 0
    Kansas Democrat No 36.3% 0 35.vii% 2 28.1% 0
    Kentucky Democrat No 46.4% 0 44.two% ii 9.4% 0
    Louisiana Democrat No xl.3% 0 33.2% 2 26.6% 0
    Maine Democrat Yeah 35.seven% 2 28.3% 0 36.0% 0
    Maryland Republican No 55.1% ii 24.vii% 0 twenty.2% 0
    Massachusetts Republican No 31.6% ii 9.7% 0 58.seven% 0
    Nebraska Republican Yes 29.0% 0 47.ix% i 23.2% 0
    Nevada Democrat Yes 35.5% 2 thirty.6% 0 33.9% 0
    New Hampshire Republican Yes 31.3% 0 29.half dozen% 2 39.1% 0
    New Bailiwick of jersey Democrat Yes 39.i% 2 22.iv% 0 38.v% 0
    New Mexico Democrat Yeah 44.9% two 31.1% 0 24.0% 0
    New York Democrat Aye 50.4% 2 21.8% 0 27.ix% 0
    North Carolina Democrat No 35.ane% 0 30.5% 2 34.4% 0
    Oklahoma Republican Yeah 32.2% 0 fifty.7% 2 17.1% 0
    Oregon Democrat Aye 35.iii% two 25.ane% 0 39.6% 0
    Pennsylvania Democrat No 46.3% 0 39.2% 2 14.five% 0
    Rhode Island Democrat Yep 42.8% 2 fourteen.1% 0 43.1% 0
    South Dakota Republican Yeah 27.0% 0 48.one% 2 24.9% 0
    U.S. Virgin Islands - - 63.vii% - 3.7% - 32.7% -
    Utah Republican Aye xiv.viii% 0 49.6% 2 35.6% 0
    West Virginia Republican Yeah 35.v% 0 37.8% two 26.6% 0
    Wyoming Republican Yeah sixteen.5% 0 69.8% 2 xiii.half dozen% 0
    Total 39.6% 26 29.2% 34 31.two% 1

    Historical information

    The tables below provide historical data nearly voter registration past partisan affiliation. Click "[show]" on the righthand side of the table header to see complete data.[xl] [41] [42] [43] [44] [45] [46] [47] [48] [49]

    2017

    2016

    2014

    2012

    2010

    2008

    2006

    2004

    2002

    2000

    Come across also

    • Voter registration

    External links

    • Election Access News
    • U.Due south. Ballot Help Commission, "National Mail Voter Registration Form"

    Footnotes

    1. A cell with - means the state did not list political party amalgamation information for that party in the source constitute by Ballotpedia
    2. This category includes figures if listed every bit "Other" on the official source found by Ballotpedia. It also includes whatever additional registration categories not listed in the columns to the left.
    3. Source
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    31. Source
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    33. Source
    34. Source
    35. Source
    36. This category includes all non-major party registrations equally well equally vacant seats.
    37. This category includes all non-major party registrations.
    38. This category includes all non-major party registrations.
    39. This category includes all not-major party registrations.
    40. Election Access News, "August 2017 Print Edition," Baronial 1, 2017
    41. Ballot Admission News, "December 2016 Impress Edition," December 1, 2016
    42. Ballot Admission News, "December 2014 Print Edition," December 1, 2014
    43. Ballot Access News, 'Dec 2012 Print Edition," December 1, 2012
    44. Election Access News, 'December 2010 Impress Edition," December 1, 2010
    45. Ballot Access News, "December 2008 Impress Edition," December 1, 2008
    46. Ballot Access News, "January 2007 Print Edition," January 1, 2007
    47. Ballot Admission News, "Dec 2004 Print Edition," Dec 12, 2004
    48. Election Admission News, "December 2002 Impress Edition," December one, 2002
    49. Ballot Access News, "December 2000 Print Edition," Dec 5, 2000