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As of July 2021, 31 states (plus the District of Columbia and the U.Due south. Virgin Islands) immune voters to betoken their partisan affiliations on voter registration forms and reported total registration numbers publicly. The remaining nineteen states either did not inquire voters to signal partisan affiliation on their registration forms or did not publicly written report those totals, according to analysis done by Ballotpedia.

This commodity provides details nearly the number of registered voters by partisan affiliations in those states that allow voters to register past political party and report those totals publicly. Historical information dating back to 2000 was provided to Ballotpedia by Richard Winger, the editor and publisher of Ballot Admission News.

HIGHLIGHTS

  • Every bit of July 2021, 49.3 1000000 registered voters identified themselves equally Democrats. At 39.6%, Democrats represented the single largest share of registered voters in those states that permit voters to indicate partisan affiliation on their registration forms. A total of 36.4 one thousand thousand registered voters identified themselves as Republicans, representing 29.two% of registered voters in these states.
  • Approximately 38.8 one thousand thousand registered voters identified themselves equally independents or members of third-parties. This amounted to 31.2% of registered voters in these states.
  • In the 2020 presidential election, Joe Biden (D) received a combined 53.5% of the vote to Donald Trump'due south (R) 44.7% across these states. Both candidates received a larger pct 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-political party presidential candidates received one.9% of the vote.
  • In those states that prompt voters to signal partisan affiliation on registration forms, affiliation with a political political party may be a condition of participation in that party'southward primaries. To learn more near principal participation criteria, click here.
  • Voter registration figures, 2021

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

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

    Voter registration figures by partisan affiliation, as of June 2021[1]
    State Democratic Republican Independent/
    nonpartisan
    American Independent Constitution Green Libertarian Working Families Other[two]
    Alaska [3] 81,255 149,173 338,931 - 646 1,524 6,948 - 21,127
    Arizona [4] 1,489,356 i,603,522 - - - - 42,220 - ane,566,514
    Arkansas [5] 90,420 117,277 1,556,117 - - 94 687 - ane
    California [vi] ten,288,144 v,347,377 5,381,720 680,573 - 85,828 204,345 - 226,317
    Colorado [7] 1,202,364 1,075,475 - - 13,807 10,164 48,367 - 1,800,711
    Connecticut [8] 926,567 510,012 i,025,878 - - - - - 42,619
    Delaware [ix] 355,522 208,305 173,663 - 271 735 2,046 353 3,593
    District of Columbia [10] 400,274 29,368 85,321 - - 3,872 two,147 - one,556
    Florida [xi] 5,267,864 v,178,159 3,829,504 - - - - - 246,276
    Idaho [12] 136,582 523,887 307,746 - 3,650 - x,587 - 0
    Iowa [13] 717,368 739,193 722,136 - - - - - nineteen,644
    Kansas [14] 499,699 856,026 530,240 - - - 20,925 - 0
    Kentucky [15] 1,652,069 i,575,249 130,908 - 1,009 ii,007 fourteen,272 - 184,862
    Louisiana [16] 1,223,296 i,007,682 - - - - - - 806,752
    Maine [17] 406,067 322,708 364,274 - - 45,752 - - 0
    Maryland [18] 2,262,797 i,015,812 766,788 - - 5,917 14,950 - 43,498
    Massachusetts [19] 1,494,980 459,663 2,717,293 - - - - - 60,004
    Nebraska [xx] 359,656 595,041 269,321 - - - eighteen,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] ii,554,293 ane,464,449 ii,433,541 - xvi,960 11,786 xx,323 - 33,040
    New Mexico [24] 603,593 418,240 295,004 - - - 13,015 - 14,357
    New York [25] 6,748,526 ii,914,704 3,015,356 - - - - 48,207 667,318
    North Carolina [26] 2,483,506 2,162,456 2,393,552 - 26 8 46,037 - 0
    Oklahoma [27] 699,424 ane,102,039 355,943 - - - xvi,362 - 0
    Oregon [28] one,035,614 737,794 963,421 - iii,784 7,998 21,706 8,605 157,624
    Pennsylvania [29] 4,040,673 3,420,953 885,116 - - - - - 384,406
    Rhode Island [thirty] 301,303 99,285 303,571 - - - - - 0
    South Dakota [31] 158,130 281,337 141,850 - - - ii,503 - one,423
    U.Southward. 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 - ii,528
    Due west Virginia [34] 408,307 434,634 257,527 - - - viii,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 electoral outcomes

    The tables compare partisan amalgamation figures and balloter outcomes in the 31 states that permit voters to indicate partisan amalgamation on their voter registration forms.

    Land legislative seats

    The tabular array beneath compares partisan affiliation figures in the 31 states that permit voters to signal partisan affiliation on their voter registration forms with the partisan composition of their land legislatures.

    Voter registration figures by partisan affiliation and partisan limerick of land legislative seats, every bit of June 2021
    Land Autonomous Republican Other[36]
    # of seats % of seats Registration % # of seats % of seats Registration % # of seats % of seats Registration %
    Alaska 35 25.0% xiii.6% 102 72.9% 24.9% 0 0.0% 61.six%
    Arizona 43 47.8% 31.7% 47 52.two% 34.1% 0 0.0% 34.2%
    Arkansas 29 21.5% 5.1% 105 77.8% 6.6% 1 0.7% 88.2%
    California xc 75.0% 46.3% 28 23.3% 24.1% i 0.eight% 29.half-dozen%
    Colorado 61 61.0% 29.0% 39 39.0% 25.9% 0 0.0% 45.i%
    Connecticut 120 64.2% 37.0% 66 35.three% 20.4% 0 0.0% 42.7%
    Delaware 40 64.five% 47.8% 22 35.5% 28.0% 0 0.0% 24.3%
    Commune of Columbia - - 76.6% - - 5.six% - - 17.viii%
    Florida 58 36.iii% 36.three% 102 63.8% 35.vii% 0 0.0% 28.1%
    Idaho 19 eighteen.1% 13.9% 86 81.nine% 53.3% 0 0.0% 32.viii%
    Iowa 59 39.3% 32.half dozen% 91 60.vii% 33.6% 0 0.0% 33.vii%
    Kansas 50 30.3% 26.ii% 115 69.7% 44.9% 0 0.0% 28.9%
    Kentucky 33 23.ix% 46.4% 105 76.ane% 44.two% 0 0.0% nine.four%
    Louisiana 45 31.3% xl.3% 95 66.0% 33.2% 3 2.1% 26.half-dozen%
    Maine 102 54.8% 35.7% 79 42.5% 28.3% 5 2.7% 36.0%
    Maryland 131 69.vii% 55.1% 57 xxx.3% 24.vii% 0 0.0% 20.2%
    Massachusetts 166 83.0% 31.6% 33 16.5% 9.7% 1 0.5% 58.7%
    Nebraska 17 34.7% 29.0% 32 65.3% 47.9% 0 0.0% 23.2%
    Nevada 38 60.3% 35.5% 25 39.seven% 30.6% 0 0.0% 33.9%
    New Hampshire 196 46.2% 31.3% 226 53.3% 29.6% 0 0.0% 39.1%
    New Jersey 77 64.two% 39.ane% 43 35.8% 22.4% 0 0.0% 38.5%
    New Mexico 72 64.3% 44.ix% 39 34.8% 31.1% 1 0.9% 24.0%
    New York 149 70.0% 50.4% 63 29.6% 21.eight% i 0.v% 27.ix%
    North Carolina 73 42.ix% 35.1% 97 57.1% thirty.5% 0 0.0% 34.4%
    Oklahoma 28 xviii.eight% 32.2% 121 81.2% 50.7% 0 0.0% 17.1%
    Oregon 55 61.one% 35.3% 33 36.7% 25.one% one i.ane% 39.6%
    Pennsylvania 110 43.v% 46.iii% 141 55.7% 39.ii% 1 0.4% 14.5%
    Rhode Island 98 86.7% 42.8% 15 13.3% 14.one% 0 0.0% 43.one%
    Southward Dakota 5 5.1% 27.0% 94 94.9% 48.ane% 0 0.0% 24.9%
    U.South. Virgin Islands - - 63.vii% - - 3.7% - - 32.7%
    Utah 23 22.1% 14.viii% 81 77.nine% 49.6% 0 0.0% 35.vi%
    Due west Virginia 33 24.half dozen% 35.5% 101 75.four% 37.8% 0 0.0% 26.6%
    Wyoming nine 10.0% 16.5% 79 87.8% 69.8% two 2.2% xiii.6%
    Total 2,064 46.4% 39.6% 2,362 53.0% 29.two% 17 0.4% 31.two%

    Congressional seats

    The tabular array below compares partisan affiliation figures in the 31 states that written report voter registration data with the partisan composition of their U.Due south. Business firm congressional delegations.

    Voter registration figures by partisan affiliation and partisan limerick 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% thirteen.6% 1 100.0% 24.ix% 0 0.0% 61.6%
    Arizona v 55.6% 31.7% 4 44.4% 34.1% 0 0.0% 34.2%
    Arkansas 0 0.0% v.one% four 100.0% half-dozen.half-dozen% 0 0.0% 88.two%
    California 42 79.2% 46.three% eleven twenty.8% 24.i% 0 0.0% 29.6%
    Colorado 4 57.1% 29.0% 3 42.ix% 25.9% 0 0.0% 45.ane%
    Connecticut five 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.three%
    Commune of Columbia - - 76.6% - - v.vi% - - 17.eight%
    Florida x 37.0% 36.three% 16 59.3% 35.7% 0 0.0% 28.1%
    Idaho 0 0.0% xiii.nine% two 100.0% 53.3% 0 0.0% 32.8%
    Iowa 1 25.0% 32.6% 3 75.0% 33.six% 0 0.0% 17.8%
    Kansas i 25.0% 36.three% 3 75.0% 35.seven% 0 0.0% 28.1%
    Kentucky one sixteen.7% 46.four% 5 83.3% 44.2% 0 0.0% ix.4%
    Louisiana 1 16.7% 40.3% 5 83.iii% 33.2% 0 0.0% 26.six%
    Maine 2 100.0% 35.7% 0 0.0% 28.iii% 0 0.0% 36.0%
    Maryland seven 87.5% 55.1% 1 12.five% 24.vii% 0 0.0% 20.2%
    Massachusetts nine 100.0% 31.6% 0 0.0% ix.seven% 0 0.0% 58.7%
    Nebraska 0 0.0% 29.0% 3 100.0% 47.9% 0 0.0% 23.2%
    Nevada 3 75.0% 35.5% 1 25.0% 30.6% 0 0.0% 33.nine%
    New Hampshire 2 100.0% 31.3% 0 0.0% 29.6% 0 0.0% 39.1%
    New Bailiwick of jersey ten 83.three% 39.1% 2 16.7% 22.4% 0 0.0% 38.five%
    New United mexican states ii 66.7% 44.ix% 1 33.3% 31.i% 0 0.0% 24.0%
    New York nineteen lxx.4% 50.4% 8 29.vi% 21.viii% 0 0.0% 27.9%
    North Carolina five 38.five% 35.1% 8 61.5% xxx.5% 0 0.0% 34.4%
    Oklahoma 0 0.0% 32.2% v 100.0% 50.7% 0 0.0% 17.1%
    Oregon 4 80.0% 35.three% 1 xx.0% 25.1% 0 0.0% 39.half dozen%
    Pennsylvania 9 50.0% 46.three% 9 50.0% 39.2% 0 0.0% 14.5%
    Rhode Island 2 100.0% 42.viii% 0 0.0% fourteen.one% 0 0.0% 43.1%
    South Dakota 0 0.0% 27.0% 1 100.0% 48.ane% 0 0.0% 24.ix%
    U.S. Virgin Islands - - 63.7% - - iii.7% - - 32.seven%
    Utah one 25.0% 14.8% 3 75.0% 49.half dozen% 0 0.0% 35.half-dozen%
    Due west Virginia 0 0.0% 35.five% 3 100.0% 37.8% 0 0.0% 26.6%
    Wyoming 0 0.0% sixteen.5% 1 100.0% 69.eight% 0 0.0% xiii.6%
    Total 146 58.2% 39.half-dozen% 104 41.4% 29.2% 0 0.0% 31.2%

    Presidential popular vote

    The table below compares partisan amalgamation figures in the 31 states that report voter registration information with the popular vote for president in the 2020 presidential ballot.

    Voter registration figures by partisan affiliation and presidential popular vote figures, as of June 2021
    Country Autonomous Republican Other[38]
    Raw popular vote % popular vote Registration % Raw popular vote % popular vote Registration % Raw pop vote % pop vote Registration %
    Alaska 153,778 42.8% 13.six% 189,951 52.8% 24.ix% 15,801 4.4% 61.6%
    Arizona ane,672,143 49.4% 31.7% 1,661,686 49.1% 34.1% 53,497 1.6% 34.2%
    Arkansas 423,932 34.8% 5.1% 760,647 62.4% 6.half-dozen% 34,490 ii.8% 88.ii%
    California eleven,110,250 63.5% 46.iii% 6,006,429 34.3% 24.1% 384,202 2.2% 29.6%
    Colorado 1,804,352 55.4% 29.0% 1,364,607 41.9% 25.nine% 87,993 two.seven% 45.i%
    Connecticut 1,080,831 59.three% 37.0% 714,717 39.ii% twenty.four% 28,309 1.6% 42.7%
    Delaware 296,268 58.7% 47.8% 200,603 39.viii% 28.0% 7,475 one.5% 24.3%
    Commune of Columbia 317,323 94.five% 76.6% xviii,586 five.5% 5.vi% 0 0.0% 17.8%
    Florida 5,297,045 47.nine% 36.3% v,668,731 51.two% 35.seven% 101,680 0.9% 28.1%
    Idaho 287,021 33.1% 13.nine% 554,119 63.8% 53.iii% 26,874 3.1% 32.8%
    Iowa 759,061 44.9% 32.half dozen% 897,672 53.one% 33.6% 34,138 ii.0% 17.8%
    Kansas 570,323 41.vi% 36.three% 771,406 56.2% 35.vii% 30,574 ii.2% 28.ane%
    Kentucky 772,474 36.2% 46.4% 1,326,646 62.i% 44.2% 37,648 i.8% 9.four%
    Louisiana 856,034 39.nine% 40.iii% 1,255,776 58.5% 33.ii% 36,252 i.7% 26.6%
    Maine 435,072 53.1% 35.7% 360,737 44.0% 28.3% 23,652 ii.ix% 36.0%
    Maryland 1,985,023 65.4% 55.one% 976,414 32.2% 24.7% 75,593 ii.5% 20.2%
    Massachusetts 2,382,202 65.half-dozen% 31.6% i,167,202 32.1% 9.vii% 81,998 2.3% 58.7%
    Nebraska 374,583 39.4% 29.0% 556,846 58.5% 47.ix% xx,283 two.ane% 23.ii%
    Nevada 703,486 fifty.one% 35.5% 669,890 47.7% thirty.6% 32,000 2.3% 33.9%
    New Hampshire 424,937 52.vii% 31.3% 365,660 45.4% 29.6% 15,608 1.9% 39.1%
    New Jersey 2,608,335 57.3% 39.1% 1,883,274 41.4% 22.4% 57,744 1.3% 38.5%
    New Mexico 501,614 54.3% 44.9% 401,894 43.5% 31.1% 20,457 2.2% 24.0%
    New York five,230,985 60.9% 50.4% 3,244,798 37.8% 21.viii% 119,043 1.4% 27.ix%
    Northward Carolina 2,684,292 48.6% 35.1% 2,758,775 49.ix% 30.5% 81,737 ane.v% 34.iv%
    Oklahoma 503,890 32.3% 32.2% 1,020,280 65.iv% l.7% 36,529 2.iii% 17.one%
    Oregon 1,340,383 56.5% 35.3% 958,448 xl.iv% 25.1% 75,490 three.2% 39.half dozen%
    Pennsylvania iii,458,229 50.0% 46.3% 3,377,674 48.8% 39.2% 79,380 i.1% 14.5%
    Rhode Isle 307,486 59.4% 42.8% 199,922 38.vi% 14.1% 10,349 two.0% 43.1%
    Due south Dakota 150,471 35.6% 27.0% 261,043 61.viii% 48.1% eleven,095 ii.6% 24.9%
    U.Southward. Virgin Islands - - 63.vii% - - 3.7% - - 32.7%
    Utah 560,282 37.half-dozen% 14.viii% 865,140 58.1% 49.six% 62,867 4.2% 35.vi%
    W Virginia 235,984 29.seven% 35.5% 545,382 68.half dozen% 37.viii% 13,286 one.seven% 26.6%
    Wyoming 73,491 26.4% 16.v% 193,559 69.five% 69.viii% xi,453 4.1% 13.half dozen%
    Total 49,361,580 53.5% 39.6% 41,198,514 44.seven% 29.2% 1,708,047 i.ix% 31.2%

    State legislative trifectas and legislative chamber control

    The table beneath compares partisan affiliation figures in the 31 states that permit voters to signal partisan amalgamation on their voter registration forms with the presence of trifectas and the partisan command of legislative chambers. A state authorities trifecta is a term to depict unmarried party government, when one political political party holds three positions in a state's government

    Voter registration figures by trifecta status, partisan amalgamation, and partisan control of legislative chambers, June 2021
    Country Governor'due south party Trifecta? Autonomous Republican Other[39]
    Registration % # of chambers Registration % # of chambers Registration % # of chambers
    Alaska Republican No 13.6% 0 24.9% ane 61.6% 1
    Arizona Republican Yes 31.7% 0 34.i% 2 34.two% 0
    Arkansas Republican Yeah 5.1% 0 6.half-dozen% 2 88.2% 0
    California Democrat Yeah 46.iii% two 24.1% 0 29.vi% 0
    Colorado Democrat Yep 29.0% 2 25.9% 0 45.1% 0
    Connecticut Democrat Yes 37.0% 2 twenty.4% 0 42.seven% 0
    Delaware Democrat Yes 47.8% 2 28.0% 0 24.3% 0
    District of Columbia - - 76.half-dozen% - five.half dozen% - 17.eight% -
    Florida Republican Yes 36.three% 0 35.seven% 2 28.1% 0
    Idaho Republican Aye 13.ix% 0 53.3% 2 32.8% 0
    Iowa Republican Aye 32.6% 0 33.6% 2 17.eight% 0
    Kansas Democrat No 36.iii% 0 35.7% 2 28.1% 0
    Kentucky Democrat No 46.4% 0 44.2% two ix.4% 0
    Louisiana Democrat No 40.iii% 0 33.2% 2 26.6% 0
    Maine Democrat Yep 35.7% 2 28.3% 0 36.0% 0
    Maryland Republican No 55.1% 2 24.vii% 0 xx.2% 0
    Massachusetts Republican No 31.six% 2 9.7% 0 58.7% 0
    Nebraska Republican Yeah 29.0% 0 47.9% 1 23.2% 0
    Nevada Democrat Yes 35.five% ii 30.six% 0 33.9% 0
    New Hampshire Republican Yes 31.3% 0 29.6% 2 39.one% 0
    New Bailiwick of jersey Democrat Yep 39.1% 2 22.4% 0 38.5% 0
    New Mexico Democrat Yes 44.ix% 2 31.1% 0 24.0% 0
    New York Democrat Yes fifty.4% 2 21.8% 0 27.9% 0
    North Carolina Democrat No 35.1% 0 30.v% 2 34.4% 0
    Oklahoma Republican Yes 32.2% 0 50.vii% ii 17.ane% 0
    Oregon Democrat Yes 35.three% 2 25.i% 0 39.six% 0
    Pennsylvania Democrat No 46.iii% 0 39.2% 2 14.5% 0
    Rhode Island Democrat Yes 42.8% 2 14.1% 0 43.ane% 0
    Due south Dakota Republican Yes 27.0% 0 48.i% 2 24.9% 0
    U.Due south. Virgin Islands - - 63.7% - 3.vii% - 32.7% -
    Utah Republican Yeah 14.eight% 0 49.six% 2 35.six% 0
    West Virginia Republican Yeah 35.5% 0 37.viii% two 26.6% 0
    Wyoming Republican Aye 16.5% 0 69.8% ii thirteen.6% 0
    Full 39.6% 26 29.2% 34 31.2% 1

    Historical data

    The tables below provide historical information about voter registration by partisan affiliation. Click "[show]" on the righthand side of the tabular array header to see complete data.[40] [41] [42] [43] [44] [45] [46] [47] [48] [49]

    2017

    2016

    2014

    2012

    2010

    2008

    2006

    2004

    2002

    2000

    Meet also

    • Voter registration

    External links

    • Ballot Access News
    • U.S. Ballot Aid Committee, "National Mail Voter Registration Form"

    Footnotes

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