Baltimore County

590,603 active registered voters as of 2026-09. Monthly reports since 2010-01.

Overall registration

New registrations and removals are only reported statewide. See Maryland statewide.

By party

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Active registration by party

Democratic, Republican and unaffiliated voters, monthly

    Other parties

    Each party has its own scale; they are far smaller than the major parties. Gaps mean the party was not on that month's report.

    Data table
    Month Active Inactive Party switches DemocraticRepublicanUnaffiliatedOtherGreenWorking ClassLibertarianNo LabelsBread and RosesAmericans ElectConstitutionIndependent
    2026-09 590,603 24,894 897 309,526 139,371 130,269 9,777 859 801 – – – – – –
    2026-08 589,797 25,037 1,448 309,116 139,487 129,792 9,789 845 768 – – – – – –
    2026-07 586,795 25,363 1,649 307,919 139,323 128,214 9,785 827 727 – – – – – –
    2026-06 586,611 25,522 1,074 307,075 139,329 128,751 9,895 843 718 – – – – – –
    2026-05 586,389 23,699 1,490 306,119 139,736 129,045 9,927 845 717 – – – – – –
    2026-04 585,320 23,907 1,055 305,329 139,790 128,734 9,933 837 697 – – – – – –
    2026-03 584,204 24,104 1,385 305,004 139,755 128,005 9,941 829 670 – – – – – –
    2026-02 585,303 22,866 1,379 305,850 140,182 127,809 9,993 825 644 – – – – – –
    2026-01 585,690 22,602 973 306,373 140,446 127,396 10,030 818 627 – – – – – –
    2025-12 585,357 22,666 813 306,458 140,512 126,903 10,061 812 611 – – – – – –
    2025-11 587,394 20,353 834 307,689 141,111 127,064 10,132 807 591 – – – – – –
    2025-10 587,041 20,350 1,078 307,758 141,260 126,519 10,137 802 565 – – – – – –
    2025-09 586,881 20,071 1,177 308,070 141,386 125,953 10,139 792 541 – – – – – –
    2025-08 587,890 18,542 712 308,952 141,702 125,736 10,195 788 517 – – – – – –
    2025-07 587,126 18,465 727 308,769 141,760 125,121 10,207 779 490 – – – – – –
    2025-06 586,293 18,590 680 308,715 141,783 124,374 10,200 774 447 – – – – – –
    2025-05 586,360 17,845 643 308,945 142,063 123,935 10,220 761 436 – – – – – –
    2025-04 585,712 17,925 793 308,865 142,062 123,389 10,229 756 411 – – – – – –
    2025-03 585,666 17,411 880 309,107 142,192 122,990 10,227 747 403 – – – – – –
    2025-02 586,071 17,253 992 309,799 142,326 122,520 10,274 743 409 – – – – – –
    2025-01 587,667 15,533 4,044 310,930 142,734 122,496 10,768 739 – – – – – – –
    2024-12 584,714 16,027 2,317 310,449 141,796 121,156 6,873 716 – 2,735 989 – – – –
    2024-11 587,850 34,401 243 312,143 142,246 121,947 7,003 735 – 2,761 1,015 – – – –
    2024-10 582,481 34,761 2,325 309,642 140,636 120,788 6,986 713 – 2,737 979 – – – –
    2024-09 578,375 35,333 2,392 308,041 139,338 119,734 7,042 675 – 2,710 835 – – – –
    2024-08 574,772 35,762 1,503 306,442 138,412 118,819 7,072 656 – 2,701 670 – – – –
    2024-07 573,567 36,066 1,571 306,358 138,172 118,034 7,756 – – 2,702 545 – – – –
    2024-06 573,904 34,270 2,454 307,069 138,092 117,815 7,801 – – 2,694 433 – – – –
    2024-05 572,815 32,942 1,397 307,367 137,983 116,792 7,761 – – 2,681 231 – – – –
    2024-04 572,851 33,118 1,856 306,808 137,606 117,801 7,863 – – 2,690 83 – – – –
    2024-03 571,472 33,420 1,428 306,276 137,055 117,601 7,846 – – 2,661 33 – – – –
    2024-02 570,881 33,707 1,908 306,665 136,855 116,837 7,849 – – 2,659 16 – – – –
    2024-01 570,727 34,036 1,704 307,691 136,739 115,864 7,812 – – 2,621 0 – – – –
    2023-12 570,501 32,911 762 308,433 136,406 115,267 7,785 – – 2,610 – – – – –
    2023-11 569,494 33,224 758 308,400 136,180 114,541 7,766 – – 2,607 – – – – –
    2023-10 569,949 32,198 639 309,073 136,341 114,160 7,770 – – 2,605 – – – – –
    2023-09 568,687 32,501 581 308,716 136,225 113,396 7,746 – – 2,604 – – – – –
    2023-08 569,639 31,293 636 309,473 136,581 113,248 7,733 – – 2,604 – – – – –
    2023-07 569,460 30,295 619 309,660 136,820 112,652 7,720 – – 2,608 – – – – –
    2023-06 568,349 30,611 657 309,439 136,714 111,915 7,687 – – 2,594 – – – – –
    2023-05 568,537 29,460 566 309,813 136,917 111,524 7,692 – – 2,591 – – – – –
    2023-04 567,755 29,541 570 309,657 136,901 110,954 7,673 – – 2,570 – – – – –
    2023-03 567,047 29,791 533 309,548 136,901 110,371 7,671 – – 2,556 – – – – –
    2023-02 567,697 28,954 513 310,258 137,154 110,082 7,655 – – 2,548 – – – – –
    2023-01 568,673 28,021 617 310,978 137,558 109,938 5,960 912 767 2,560 – – – – –
    2022-12 573,638 23,134 2,475 313,823 138,939 110,633 5,987 919 745 2,592 – – – – –
    2022-11 570,292 38,451 50 312,409 138,517 109,230 5,976 915 705 2,540 – – – – –
    2022-10 569,467 38,651 1,164 311,876 138,402 109,064 5,979 908 703 2,535 – – – – –
    2022-09 568,644 39,094 1,776 311,586 138,270 108,672 5,999 903 685 2,529 – – – – –
    2022-08 566,695 39,523 2,785 310,596 137,831 107,987 6,239 887 645 2,510 – – – – –
    2022-07 566,053 37,365 101 309,949 137,776 108,024 6,283 882 634 2,505 – – – – –
    2022-06 566,021 37,477 2,220 309,902 137,798 108,008 6,299 882 630 2,502 – – – – –
    2022-05 565,729 37,952 987 309,893 137,429 108,021 6,414 900 599 2,473 – – – – –
    2022-04 563,611 38,438 613 309,062 137,087 107,189 6,365 882 575 2,451 – – – – –
    2022-03 564,060 37,678 1,664 309,549 137,363 106,917 6,335 881 563 2,452 – – – – –
    2022-02 565,871 35,807 1,598 311,181 138,216 106,336 6,315 879 504 2,440 – – – – –
    2022-01 566,101 35,290 905 311,833 138,762 105,485 6,284 861 467 2,409 – – – – –
    2021-12 563,478 35,705 640 310,830 138,361 104,414 6,076 850 439 2,375 – 133 – – –
    2021-11 563,374 35,656 794 310,941 138,427 104,179 6,035 856 432 2,371 – 133 – – –
    2021-10 565,220 33,830 753 312,192 138,983 104,216 6,034 860 426 2,376 – 133 – – –
    2021-09 564,128 34,364 823 311,836 138,891 103,579 6,038 869 417 2,363 – 135 – – –
    2021-08 567,702 30,984 932 313,783 139,909 104,121 6,088 881 411 2,373 – 136 – – –
    2021-07 567,493 30,003 824 313,859 140,010 103,752 6,093 891 395 2,358 – 135 – – –
    2021-06 570,170 26,886 1,005 315,264 140,831 104,138 6,123 911 388 2,377 – 138 – – –
    2021-05 569,866 26,601 766 315,287 140,977 103,716 6,102 906 383 2,355 – 140 – – –
    2021-04 570,988 25,697 716 315,992 141,555 103,578 6,076 911 380 2,355 – 141 – – –
    2021-03 570,220 26,141 702 315,694 141,702 103,029 6,035 912 375 2,331 – 142 – – –
    2021-02 571,166 25,012 761 316,196 142,268 102,930 6,020 906 365 2,336 – 145 – – –
    2021-01 577,753 19,666 1,737 319,273 144,490 104,141 6,050 918 355 2,383 – 143 – – –
    2020-12 575,701 19,995 1,959 318,162 144,963 102,985 5,896 912 332 2,307 – 144 – – –
    2020-11 574,148 32,256 54 317,502 144,573 102,535 5,894 909 316 2,279 – 140 – – –
    2020-10 571,899 32,553 4,980 316,459 143,757 102,180 5,884 909 310 2,259 – 141 – – –
    2020-09 565,621 33,917 5,790 313,060 142,352 100,948 5,902 869 224 2,129 – 137 – – –
    2020-08 560,012 35,290 4,635 310,266 141,048 99,694 5,971 799 144 1,965 – 125 – – –
    2020-07 555,325 36,355 1,596 307,354 140,128 98,908 8,746 – 76 – – 113 – – –
    2020-06 568,984 22,292 1,402 316,924 143,451 99,613 8,841 – 44 – – 111 – – –
    2020-05 568,225 22,411 1,238 316,049 143,430 99,780 8,847 – 9 – – 110 – – –
    2020-04 568,164 22,489 695 316,070 143,379 99,806 8,798 – 2 – – 109 – – –
    2020-03 568,554 22,568 1,977 316,333 143,575 99,845 8,695 – – – – 106 – – –
    2020-02 566,976 22,927 2,141 314,893 143,359 99,904 8,720 – – – – 100 – – –
    2020-01 565,341 23,243 1,332 313,549 143,219 99,708 8,774 – – – – 91 – – –
    2019-12 564,399 23,700 980 313,036 143,102 99,372 8,808 – – – – 81 – – –
    2019-11 564,625 22,767 800 313,357 143,195 99,195 8,807 – – – – 71 – – –
    2019-10 563,864 22,992 1,184 313,079 143,086 98,830 8,802 – – – – 67 – – –
    2019-09 564,386 21,647 1,242 313,303 143,458 98,715 8,855 – – – – 55 – – –
    2019-08 562,912 21,939 1,253 312,676 143,227 98,106 8,853 – – – – 50 – – –
    2019-07 563,799 20,201 1,232 313,207 143,681 97,971 8,897 – – – – 43 – – –
    2019-06 562,176 20,399 906 312,430 143,495 97,286 8,929 – – – – 36 – – –
    2019-05 560,813 20,669 1,001 311,814 143,417 96,595 8,957 – – – – 30 – – –
    2019-04 561,491 19,423 1,143 312,314 143,750 96,392 9,018 – – – – 17 – – –
    2019-03 560,244 19,645 1,178 311,770 143,491 95,780 9,191 – – – – 12 – – –
    2019-02 560,223 18,202 770 311,831 143,566 95,518 9,307 – – – – 1 – – –
    2019-01 559,738 18,367 1,466 311,834 143,434 95,166 4,647 1,401 – 3,256 – 0 – – –
    2018-12 561,443 26,917 842 313,580 144,137 94,362 4,679 1,414 – 3,271 – – – – –
    2018-11 561,512 26,059 938 313,733 144,339 94,087 4,661 1,419 – 3,273 – – – – –
    2018-10 560,128 26,834 2,538 312,943 144,100 93,738 4,671 1,421 – 3,255 – – – – –
    2018-09 556,310 27,291 1,029 311,012 143,282 92,838 4,541 1,413 – 3,224 – – – – –
    2018-08 553,945 27,615 985 309,780 142,906 92,145 4,496 1,415 – 3,203 – – – – –
    2018-07 553,791 26,171 1,934 309,589 143,111 92,007 4,496 1,415 – 3,173 – – – – –
    2018-06 552,390 26,733 885 308,555 142,892 91,859 4,492 1,428 – 3,164 – – – – –
    2018-05 551,331 26,931 802 307,754 142,558 91,922 4,503 1,436 – 3,158 – – – – –
    2018-04 550,326 27,133 468 307,219 142,373 91,666 4,479 1,452 – 3,137 – – – – –
    2018-03 549,414 27,802 434 306,746 142,293 91,330 4,472 1,453 – 3,120 – – – – –
    2018-02 548,333 27,661 390 306,058 142,275 90,974 4,476 1,452 – 3,098 – – – – –
    2018-01 547,826 28,367 476 305,849 142,241 90,743 4,448 1,449 – 3,096 – – – – –
    2017-12 547,640 26,926 470 305,721 142,377 90,566 4,452 1,447 – 3,077 – – – – –
    2017-11 547,926 27,446 543 305,976 142,637 90,367 4,439 1,449 – 3,058 – – – – –
    2017-10 550,003 24,918 443 307,057 143,393 90,572 4,449 1,456 – 3,076 – – – – –
    2017-09 549,435 25,049 496 306,908 143,358 90,197 4,439 1,455 – 3,078 – – – – –
    2017-08 548,872 25,206 585 306,815 143,313 89,809 4,429 1,449 – 3,057 – – – – –
    2017-07 550,431 23,401 424 307,956 143,747 89,789 4,429 1,456 – 3,054 – – – – –
    2017-06 551,462 21,064 480 308,650 144,043 89,829 4,434 1,459 – 3,047 – – – – –
    2017-05 552,384 20,422 477 309,319 144,430 89,720 4,448 1,451 – 3,016 – – – – –
    2017-04 552,404 20,478 471 309,624 144,447 89,425 4,454 1,449 – 3,005 – – – – –
    2017-03 551,820 20,674 643 309,524 144,375 89,037 4,452 1,442 – 2,990 – – – – –
    2017-02 552,208 20,358 608 309,968 144,546 88,808 4,453 1,439 – 2,994 – – – – –
    2017-01 554,828 18,167 608 311,357 145,210 89,311 4,493 1,442 – 3,015 – – – – –
    2016-12 555,003 16,947 2,560 311,115 145,354 89,543 4,537 1,447 – 3,007 – – – – –
    2016-11 554,734 28,503 21 311,193 145,041 89,576 4,527 1,426 – 2,971 – – – – –
    2016-10 552,656 29,153 2,434 310,021 144,557 89,184 4,513 1,422 – 2,959 – – – – –
    2016-09 546,140 30,078 1,749 306,606 142,767 88,232 4,342 1,347 – 2,846 – – – – –
    2016-08 542,972 30,786 1,277 305,153 141,902 87,605 4,252 1,316 – 2,744 – – – – –
    2016-07 542,276 30,134 2,160 304,837 142,008 87,200 4,269 1,286 – 2,676 – – – – –
    2016-06 543,199 27,789 4,780 305,941 142,363 86,880 4,246 1,188 – 2,581 – – – – –
    2016-05 543,208 26,553 377 306,171 141,131 87,783 4,374 1,187 – 2,562 – – – – –
    2016-04 542,970 26,191 2,578 305,686 141,011 88,141 4,378 1,193 – 2,561 – – – – –
    2016-03 541,202 26,870 3,634 304,684 140,566 87,860 4,374 1,187 – 2,531 – – – – –
    2016-02 538,663 27,111 2,021 302,010 138,139 90,104 4,503 1,291 – 2,616 – – – – –
    2016-01 536,566 27,221 1,270 300,840 136,978 90,256 4,525 1,309 – 2,658 – – – – –
    2015-12 536,220 27,756 1,002 300,799 136,654 90,236 4,545 1,319 – 2,667 – – – – –
    2015-11 534,255 28,001 1,180 300,018 135,960 89,750 4,555 1,326 – 2,646 – – – – –
    2015-10 531,296 29,421 855 298,733 135,096 88,965 4,563 1,324 – 2,615 – – – – –
    2015-09 527,722 30,069 1,187 296,698 134,356 88,189 4,563 1,321 – 2,595 – – – – –
    2015-08 526,405 29,566 975 296,235 133,777 87,895 4,580 1,341 – 2,577 – – – – –
    2015-07 524,206 30,709 794 295,250 133,103 87,364 4,588 1,347 – 2,554 – – – – –
    2015-06 522,695 30,179 818 294,685 132,706 86,822 4,597 1,346 – 2,539 – – – – –
    2015-05 520,464 31,525 619 293,691 132,208 86,094 4,615 1,340 – 2,516 – – – – –
    2015-04 519,645 31,874 629 293,640 131,955 85,598 4,634 1,326 – 2,492 – – – – –
    2015-03 522,304 29,179 640 295,424 132,486 85,880 4,683 1,334 – 2,497 – – – – –
    2015-02 524,948 25,363 527 297,440 132,869 86,072 4,754 1,334 – 2,479 – – – – –
    2015-01 525,934 22,277 796 298,255 133,060 86,018 4,785 1,346 – 2,470 – – – – –
    2014-12 527,133 21,539 1,549 299,635 133,151 85,718 4,843 1,340 – 2,446 – – – – –
    2014-11 525,951 35,197 267 299,635 132,680 85,060 4,866 1,322 – 2,388 – – – – –
    2014-10 524,473 36,821 670 298,925 132,176 84,821 4,875 1,312 – 2,364 – – – – –
    2014-09 523,286 37,136 592 298,518 131,834 84,460 4,835 1,305 – 2,334 – – – – –
    2014-08 522,260 37,642 499 298,287 131,585 83,929 4,842 1,302 – 2,315 – – – – –
    2014-07 520,505 38,105 2,040 297,437 131,251 83,392 4,852 1,291 – 2,282 – – – – –
    2014-06 515,905 37,577 368 295,072 130,323 82,182 4,825 1,271 – 2,232 – – – – –
    2014-05 518,048 37,812 694 295,769 130,843 83,015 4,907 1,283 – 2,231 – – – – –
    2014-04 517,430 38,223 620 295,378 130,842 82,788 4,923 1,295 – 2,204 – – – – –
    2014-03 513,912 38,811 649 293,780 130,064 81,689 4,928 1,291 – 2,138 – – 22 – –
    2014-02 513,539 38,033 570 293,640 130,168 81,361 4,955 1,281 – 2,109 – – 25 – –
    2014-01 513,760 37,347 619 293,858 130,337 81,162 4,992 1,283 – 2,102 – – 26 – –
    2013-12 512,686 37,609 991 293,471 130,211 80,656 4,989 1,269 – 2,064 – – 26 – –
    2013-11 512,500 37,732 599 293,682 130,194 79,871 5,430 1,264 – 2,032 – – 27 – –
    2013-10 513,827 35,653 814 294,647 130,565 79,823 5,475 1,277 – 2,013 – – 27 – –
    2013-09 517,113 32,295 652 296,624 131,442 80,212 5,517 1,286 – 2,004 – – 28 – –
    2013-08 515,084 33,998 992 295,520 131,072 79,702 5,510 1,274 – 1,978 – – 28 – –
    2013-07 513,877 30,986 781 294,835 130,896 79,341 5,525 1,280 – 1,972 – – 28 – –
    2013-06 525,847 24,931 567 302,243 133,911 80,728 5,650 1,332 – 1,955 – – 28 – –
    2013-05 526,112 23,341 637 302,636 133,984 80,474 5,719 1,334 – 1,937 – – 28 – –
    2013-04 528,559 21,080 1,226 304,520 134,508 80,458 5,789 1,339 – 1,916 – – 29 – –
    2013-03 527,497 19,487 1,290 304,150 134,590 79,629 5,864 1,342 – 1,895 – – 27 – –
    2013-02 525,349 18,630 953 303,305 134,288 78,520 5,966 1,361 – 1,889 – – 20 – –
    2013-01 524,045 18,940 689 302,859 134,230 77,704 5,997 1,364 – 1,876 – – 15 – –
    2012-12 523,978 19,299 979 303,090 134,394 77,205 6,027 1,370 – 1,880 – – 12 – –
    2012-11 524,468 42,228 115 303,184 134,632 77,310 6,091 1,376 – 1,864 – – 11 – –
    2012-10 515,785 46,620 2,394 298,181 132,760 75,636 6,047 1,340 – 1,811 – – 10 – –
    2012-09 502,360 48,871 2,132 290,721 130,483 72,290 5,857 1,295 – 1,706 – – 8 – –
    2012-08 495,625 50,617 636 287,036 129,387 70,968 5,255 1,316 – 1,661 – – 2 – –
    2012-07 493,291 51,315 528 285,928 128,997 70,170 8,196 – – – – – 0 – –
    2012-06 494,892 49,830 890 287,229 129,423 70,012 8,228 – – – – – 0 – –
    2012-05 492,722 49,163 712 286,249 129,004 69,173 5,328 1,329 – 1,639 – – – – –
    2012-04 492,288 49,024 899 286,217 128,991 68,746 5,377 1,334 – 1,623 – – – – –
    2012-03 490,830 49,411 790 285,464 128,404 68,592 5,425 1,331 – 1,614 – – – – –
    2012-02 489,056 50,094 913 284,807 127,805 68,059 5,442 1,328 – 1,615 – – – – –
    2012-01 487,089 50,257 645 284,121 127,130 67,521 5,384 1,331 – 1,602 – – – – –
    2011-12 482,600 50,789 254 281,676 126,166 66,483 5,367 1,320 – 1,588 – – – – –
    2011-11 481,524 50,796 354 281,220 125,896 66,125 5,382 1,321 – 1,579 – – – 1 –
    2011-10 480,081 51,024 453 280,563 125,596 65,670 5,377 1,306 – 1,569 – – – 0 –
    2011-09 478,598 51,224 310 279,970 125,283 65,102 5,292 1,297 – 1,552 – – – 102 –
    2011-08 477,658 51,537 382 279,579 125,107 64,742 5,293 1,291 – 1,548 – – – 98 –
    2011-07 476,713 51,231 274 279,339 124,989 64,167 5,291 1,291 – 1,539 – – – 97 –
    2011-06 475,970 51,838 273 279,196 124,857 63,720 5,284 1,292 – 1,524 – – – 97 –
    2011-05 474,030 50,831 235 278,181 124,441 63,257 5,281 1,275 – 1,499 – – – 96 –
    2011-04 475,698 50,868 245 279,396 124,962 63,173 5,308 1,273 – 1,491 – – – 95 –
    2011-03 476,528 50,994 274 280,055 125,349 62,941 5,329 1,273 – 1,484 – – – 97 –
    2011-02 481,938 46,180 199 283,386 126,556 63,701 5,401 1,309 – 1,492 – – – 93 –
    2011-01 489,140 39,257 303 287,855 128,101 64,755 5,491 1,331 – 1,516 – – – 91 –
    2010-12 496,150 32,897 854 292,330 129,559 65,696 5,586 1,338 – 1,551 – – – 90 –
    2010-11 497,081 31,901 671 293,170 129,787 65,530 5,640 1,340 – 1,527 – – – 87 –
    2010-10 493,152 34,307 612 291,137 128,704 64,780 5,623 1,326 – 1,502 – – – 80 –
    2010-09 490,577 35,119 1,586 290,071 127,939 64,071 5,626 1,319 – 1,475 – – – 76 –
    2010-08 488,822 35,573 4,299 289,192 126,951 64,169 5,670 1,320 – 1,448 – – – 72 –
    2010-07 485,961 35,932 751 287,765 126,150 63,557 5,688 1,305 – 1,425 – – – 70 1
    2010-06 483,662 36,462 1,405 286,687 125,539 59,451 5,703 1,289 – 1,408 – – – 65 3,520
    2010-05 482,558 36,549 396 286,114 125,061 58,669 5,571 1,278 – 1,349 – – – 55 4,461
    2010-04 481,393 36,650 445 285,670 124,720 58,505 5,579 1,279 – 1,330 – – – 52 4,258
    2010-03 481,111 36,863 526 285,791 124,686 58,371 5,602 1,280 – 1,317 – – – 50 4,014
    2010-02 480,183 37,072 289 285,521 124,532 58,224 5,623 1,274 – 1,299 – – – 42 3,668
    2010-01 479,920 37,137 297 285,486 124,494 58,204 5,634 1,270 – 1,291 – – – 44 3,497