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

This article provides details about the number of registered voters past partisan affiliations in those states that allow voters to register by 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

  • Equally of July 2021, 49.3 million registered voters identified themselves as Democrats. At 39.6%, Democrats represented the unmarried largest share of registered voters in those states that allow voters to indicate partisan affiliation on their registration forms. A full of 36.iv million registered voters identified themselves equally Republicans, representing 29.2% of registered voters in these states.
  • Approximately 38.viii million registered voters identified themselves equally independents or members of tertiary-parties. This amounted to 31.2% 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.vii% across these states. Both candidates received a larger percent of votes than the percentage of their respective political party's registered voters. Independent and third-party voters fabricated 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 betoken partisan affiliation on registration forms, affiliation with a political party may exist a condition of participation in that party's primaries. To learn more about principal 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 single grouping of voters fabricated up a majority of registrants: in 10 states, Democrats made up a plurality of registered voters and Republicans made up a plurality in four. Voters registered as independent or with a 3rd party made up a plurality of registrants in eight states. Democrats fabricated up a bulk of registered voters in two states—Maryland and New York—and Republicans fabricated upwardly a bulk in iv—Idaho, Oklahoma, Utah, and Wyoming. Independent or third party registrants made upwardly a majority in three states—Alaska, Arkansas, and Massachusetts.

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

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

    Correlations with balloter outcomes

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

    State legislative seats

    The table below compares partisan amalgamation figures in the 31 states that let voters to indicate partisan affiliation on their voter registration forms with the partisan limerick of their state legislatures.

    Voter registration figures by partisan affiliation and partisan composition of state legislative seats, every bit of June 2021
    State Democratic Republican Other[36]
    # of seats % of seats Registration % # of seats % of seats Registration % # of seats % of seats Registration %
    Alaska 35 25.0% 13.6% 102 72.nine% 24.9% 0 0.0% 61.vi%
    Arizona 43 47.eight% 31.seven% 47 52.2% 34.1% 0 0.0% 34.two%
    Arkansas 29 21.5% 5.1% 105 77.eight% 6.6% one 0.7% 88.2%
    California ninety 75.0% 46.3% 28 23.3% 24.i% 1 0.viii% 29.6%
    Colorado 61 61.0% 29.0% 39 39.0% 25.9% 0 0.0% 45.1%
    Connecticut 120 64.ii% 37.0% 66 35.iii% 20.4% 0 0.0% 42.vii%
    Delaware 40 64.5% 47.8% 22 35.five% 28.0% 0 0.0% 24.3%
    District of Columbia - - 76.6% - - 5.six% - - 17.8%
    Florida 58 36.3% 36.3% 102 63.eight% 35.7% 0 0.0% 28.1%
    Idaho 19 18.1% xiii.9% 86 81.9% 53.3% 0 0.0% 32.viii%
    Iowa 59 39.3% 32.half dozen% 91 60.seven% 33.6% 0 0.0% 33.seven%
    Kansas 50 30.iii% 26.2% 115 69.7% 44.9% 0 0.0% 28.nine%
    Kentucky 33 23.9% 46.four% 105 76.1% 44.2% 0 0.0% ix.4%
    Louisiana 45 31.three% 40.3% 95 66.0% 33.2% 3 2.1% 26.6%
    Maine 102 54.8% 35.vii% 79 42.5% 28.iii% 5 2.vii% 36.0%
    Maryland 131 69.7% 55.1% 57 30.three% 24.seven% 0 0.0% 20.2%
    Massachusetts 166 83.0% 31.six% 33 16.5% 9.vii% i 0.v% 58.7%
    Nebraska 17 34.vii% 29.0% 32 65.iii% 47.ix% 0 0.0% 23.2%
    Nevada 38 60.iii% 35.5% 25 39.7% 30.6% 0 0.0% 33.9%
    New Hampshire 196 46.2% 31.3% 226 53.3% 29.vi% 0 0.0% 39.ane%
    New Bailiwick of jersey 77 64.2% 39.1% 43 35.viii% 22.4% 0 0.0% 38.5%
    New Mexico 72 64.three% 44.ix% 39 34.viii% 31.ane% 1 0.9% 24.0%
    New York 149 70.0% l.4% 63 29.half dozen% 21.8% 1 0.v% 27.nine%
    Due north Carolina 73 42.9% 35.1% 97 57.1% 30.5% 0 0.0% 34.4%
    Oklahoma 28 18.eight% 32.ii% 121 81.ii% 50.7% 0 0.0% 17.1%
    Oregon 55 61.1% 35.3% 33 36.7% 25.1% 1 1.one% 39.6%
    Pennsylvania 110 43.v% 46.3% 141 55.vii% 39.two% one 0.iv% fourteen.5%
    Rhode Island 98 86.vii% 42.8% 15 13.3% 14.1% 0 0.0% 43.ane%
    S Dakota 5 5.ane% 27.0% 94 94.9% 48.1% 0 0.0% 24.9%
    U.South. Virgin Islands - - 63.7% - - 3.seven% - - 32.7%
    Utah 23 22.i% fourteen.8% 81 77.ix% 49.six% 0 0.0% 35.6%
    West Virginia 33 24.6% 35.5% 101 75.4% 37.viii% 0 0.0% 26.6%
    Wyoming ix ten.0% sixteen.five% 79 87.8% 69.8% 2 2.two% xiii.6%
    Full two,064 46.4% 39.vi% two,362 53.0% 29.2% 17 0.iv% 31.2%

    Congressional seats

    The tabular array below compares partisan affiliation figures in the 31 states that report voter registration information with the partisan composition of their U.South. Firm congressional delegations.

    Voter registration figures by partisan affiliation and partisan composition of U.S. House seats, as of June 2021
    Country 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% ane 100.0% 24.9% 0 0.0% 61.6%
    Arizona 5 55.vi% 31.7% 4 44.four% 34.i% 0 0.0% 34.2%
    Arkansas 0 0.0% 5.1% 4 100.0% 6.half-dozen% 0 0.0% 88.ii%
    California 42 79.2% 46.3% 11 twenty.8% 24.1% 0 0.0% 29.6%
    Colorado iv 57.1% 29.0% 3 42.9% 25.9% 0 0.0% 45.1%
    Connecticut 5 100.0% 37.0% 0 0.0% 20.four% 0 0.0% 42.7%
    Delaware one 100.0% 47.eight% 0 0.0% 28.0% 0 0.0% 24.3%
    District of Columbia - - 76.6% - - 5.6% - - 17.viii%
    Florida 10 37.0% 36.3% 16 59.3% 35.vii% 0 0.0% 28.1%
    Idaho 0 0.0% 13.ix% ii 100.0% 53.3% 0 0.0% 32.eight%
    Iowa 1 25.0% 32.6% 3 75.0% 33.6% 0 0.0% 17.8%
    Kansas 1 25.0% 36.3% iii 75.0% 35.7% 0 0.0% 28.1%
    Kentucky 1 sixteen.7% 46.4% five 83.3% 44.2% 0 0.0% ix.four%
    Louisiana 1 sixteen.7% forty.3% 5 83.3% 33.2% 0 0.0% 26.6%
    Maine ii 100.0% 35.vii% 0 0.0% 28.three% 0 0.0% 36.0%
    Maryland 7 87.5% 55.i% 1 12.five% 24.7% 0 0.0% twenty.2%
    Massachusetts 9 100.0% 31.vi% 0 0.0% 9.vii% 0 0.0% 58.seven%
    Nebraska 0 0.0% 29.0% 3 100.0% 47.ix% 0 0.0% 23.ii%
    Nevada 3 75.0% 35.5% one 25.0% 30.6% 0 0.0% 33.9%
    New Hampshire two 100.0% 31.iii% 0 0.0% 29.6% 0 0.0% 39.1%
    New Bailiwick of jersey 10 83.3% 39.one% 2 sixteen.7% 22.iv% 0 0.0% 38.5%
    New Mexico ii 66.7% 44.ix% 1 33.3% 31.1% 0 0.0% 24.0%
    New York 19 70.four% 50.4% 8 29.6% 21.8% 0 0.0% 27.9%
    North Carolina five 38.5% 35.ane% 8 61.5% 30.5% 0 0.0% 34.4%
    Oklahoma 0 0.0% 32.two% 5 100.0% 50.7% 0 0.0% 17.1%
    Oregon iv 80.0% 35.3% 1 twenty.0% 25.1% 0 0.0% 39.6%
    Pennsylvania 9 50.0% 46.three% 9 fifty.0% 39.2% 0 0.0% 14.5%
    Rhode Island two 100.0% 42.eight% 0 0.0% 14.i% 0 0.0% 43.1%
    S Dakota 0 0.0% 27.0% one 100.0% 48.ane% 0 0.0% 24.9%
    U.S. Virgin Islands - - 63.7% - - 3.7% - - 32.7%
    Utah ane 25.0% 14.viii% 3 75.0% 49.6% 0 0.0% 35.half-dozen%
    Westward Virginia 0 0.0% 35.v% 3 100.0% 37.eight% 0 0.0% 26.6%
    Wyoming 0 0.0% 16.five% 1 100.0% 69.8% 0 0.0% 13.6%
    Total 146 58.2% 39.6% 104 41.4% 29.ii% 0 0.0% 31.two%

    Presidential popular vote

    The table below compares partisan affiliation figures in the 31 states that written report voter registration data with the popular 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 popular vote % popular vote Registration % Raw popular vote % popular vote Registration % Raw popular vote % popular vote Registration %
    Alaska 153,778 42.viii% 13.half-dozen% 189,951 52.8% 24.9% 15,801 four.4% 61.6%
    Arizona 1,672,143 49.four% 31.vii% 1,661,686 49.1% 34.1% 53,497 one.6% 34.2%
    Arkansas 423,932 34.viii% 5.one% 760,647 62.iv% 6.6% 34,490 2.8% 88.2%
    California eleven,110,250 63.v% 46.3% 6,006,429 34.3% 24.1% 384,202 2.ii% 29.vi%
    Colorado 1,804,352 55.4% 29.0% one,364,607 41.9% 25.9% 87,993 ii.7% 45.ane%
    Connecticut 1,080,831 59.3% 37.0% 714,717 39.2% 20.four% 28,309 1.half-dozen% 42.7%
    Delaware 296,268 58.7% 47.viii% 200,603 39.8% 28.0% 7,475 1.5% 24.3%
    Commune of Columbia 317,323 94.v% 76.half dozen% eighteen,586 v.5% 5.half-dozen% 0 0.0% 17.8%
    Florida 5,297,045 47.9% 36.iii% 5,668,731 51.two% 35.seven% 101,680 0.nine% 28.i%
    Idaho 287,021 33.1% 13.9% 554,119 63.viii% 53.3% 26,874 3.1% 32.eight%
    Iowa 759,061 44.9% 32.6% 897,672 53.1% 33.half dozen% 34,138 two.0% 17.eight%
    Kansas 570,323 41.vi% 36.3% 771,406 56.2% 35.7% thirty,574 ii.2% 28.i%
    Kentucky 772,474 36.ii% 46.iv% 1,326,646 62.ane% 44.2% 37,648 ane.8% 9.four%
    Louisiana 856,034 39.9% 40.3% one,255,776 58.five% 33.2% 36,252 1.vii% 26.vi%
    Maine 435,072 53.1% 35.seven% 360,737 44.0% 28.3% 23,652 two.ix% 36.0%
    Maryland 1,985,023 65.iv% 55.one% 976,414 32.2% 24.7% 75,593 2.five% 20.2%
    Massachusetts 2,382,202 65.6% 31.6% 1,167,202 32.1% 9.vii% 81,998 two.3% 58.7%
    Nebraska 374,583 39.four% 29.0% 556,846 58.5% 47.9% twenty,283 2.1% 23.ii%
    Nevada 703,486 50.1% 35.five% 669,890 47.7% 30.half dozen% 32,000 2.3% 33.9%
    New Hampshire 424,937 52.7% 31.3% 365,660 45.iv% 29.6% 15,608 1.9% 39.one%
    New Bailiwick of jersey ii,608,335 57.three% 39.1% i,883,274 41.4% 22.4% 57,744 1.3% 38.5%
    New Mexico 501,614 54.three% 44.9% 401,894 43.5% 31.1% xx,457 ii.two% 24.0%
    New York v,230,985 60.nine% 50.4% 3,244,798 37.8% 21.viii% 119,043 1.four% 27.9%
    North Carolina two,684,292 48.6% 35.1% 2,758,775 49.ix% 30.5% 81,737 1.5% 34.4%
    Oklahoma 503,890 32.3% 32.ii% ane,020,280 65.4% 50.vii% 36,529 2.three% 17.1%
    Oregon one,340,383 56.5% 35.3% 958,448 40.4% 25.one% 75,490 iii.two% 39.6%
    Pennsylvania 3,458,229 50.0% 46.3% iii,377,674 48.8% 39.two% 79,380 one.1% 14.5%
    Rhode Island 307,486 59.4% 42.viii% 199,922 38.6% xiv.1% 10,349 2.0% 43.1%
    South Dakota 150,471 35.6% 27.0% 261,043 61.8% 48.1% eleven,095 ii.6% 24.ix%
    U.S. Virgin Islands - - 63.7% - - iii.vii% - - 32.7%
    Utah 560,282 37.6% xiv.8% 865,140 58.i% 49.6% 62,867 4.ii% 35.vi%
    West Virginia 235,984 29.7% 35.5% 545,382 68.six% 37.viii% xiii,286 1.7% 26.6%
    Wyoming 73,491 26.4% 16.v% 193,559 69.5% 69.8% 11,453 four.i% 13.6%
    Total 49,361,580 53.5% 39.half-dozen% 41,198,514 44.7% 29.2% 1,708,047 1.9% 31.2%

    State legislative trifectas and legislative chamber control

    The table below compares partisan affiliation figures in the 31 states that permit voters to indicate partisan affiliation on their voter registration forms with the presence of trifectas and the partisan control of legislative chambers. A state authorities trifecta is a term to describe single party regime, when one political political party holds three positions in a state's regime

    Voter registration figures by trifecta status, partisan amalgamation, and partisan control of legislative chambers, June 2021
    State Governor's party Trifecta? Democratic Republican Other[39]
    Registration % # of chambers Registration % # of chambers Registration % # of chambers
    Alaska Republican No thirteen.vi% 0 24.9% i 61.6% 1
    Arizona Republican Yeah 31.seven% 0 34.one% 2 34.2% 0
    Arkansas Republican Yes 5.i% 0 6.6% two 88.2% 0
    California Democrat Yes 46.3% 2 24.1% 0 29.half dozen% 0
    Colorado Democrat Yes 29.0% 2 25.9% 0 45.one% 0
    Connecticut Democrat Aye 37.0% 2 xx.four% 0 42.7% 0
    Delaware Democrat Yes 47.8% 2 28.0% 0 24.three% 0
    District of Columbia - - 76.6% - 5.vi% - 17.8% -
    Florida Republican Yeah 36.3% 0 35.7% 2 28.ane% 0
    Idaho Republican Yes 13.9% 0 53.iii% 2 32.viii% 0
    Iowa Republican Aye 32.half-dozen% 0 33.half dozen% 2 17.8% 0
    Kansas Democrat No 36.3% 0 35.7% 2 28.1% 0
    Kentucky Democrat No 46.4% 0 44.2% 2 9.4% 0
    Louisiana Democrat No 40.3% 0 33.2% 2 26.6% 0
    Maine Democrat Yes 35.7% 2 28.3% 0 36.0% 0
    Maryland Republican No 55.ane% ii 24.seven% 0 20.2% 0
    Massachusetts Republican No 31.6% ii ix.vii% 0 58.seven% 0
    Nebraska Republican Yes 29.0% 0 47.9% ane 23.2% 0
    Nevada Democrat Yes 35.5% 2 30.6% 0 33.ix% 0
    New Hampshire Republican Yes 31.3% 0 29.half-dozen% two 39.one% 0
    New Jersey Democrat Yes 39.i% 2 22.iv% 0 38.5% 0
    New United mexican states Democrat Yes 44.nine% ii 31.1% 0 24.0% 0
    New York Democrat Yes 50.4% 2 21.8% 0 27.ix% 0
    North Carolina Democrat No 35.1% 0 thirty.v% 2 34.iv% 0
    Oklahoma Republican Yes 32.2% 0 l.vii% ii 17.one% 0
    Oregon Democrat Yep 35.3% two 25.ane% 0 39.half-dozen% 0
    Pennsylvania Democrat No 46.iii% 0 39.2% 2 xiv.v% 0
    Rhode Isle Democrat Yes 42.8% 2 14.1% 0 43.1% 0
    South Dakota Republican Yes 27.0% 0 48.one% 2 24.9% 0
    U.S. Virgin Islands - - 63.7% - 3.7% - 32.vii% -
    Utah Republican Yeah 14.8% 0 49.half-dozen% 2 35.half dozen% 0
    West Virginia Republican Yes 35.5% 0 37.eight% 2 26.6% 0
    Wyoming Republican Yes 16.v% 0 69.8% ii 13.6% 0
    Total 39.6% 26 29.2% 34 31.two% one

    Historical data

    The tables beneath provide historical information most voter registration by partisan amalgamation. Click "[show]" on the righthand side of the table header to meet complete data.[forty] [41] [42] [43] [44] [45] [46] [47] [48] [49]

    2017

    2016

    2014

    2012

    2010

    2008

    2006

    2004

    2002

    2000

    Encounter also

    • Voter registration

    External links

    • Election Access News
    • U.Southward. Ballot Assistance Committee, "National Mail service Voter Registration Form"

    Footnotes

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