Colorado
Latest figures: September 2026. Official figures from the Colorado Secretary of State (active voters) where available; other months come from posts by @Grassroots20244.
Democrats987,582+2,051 this month
Republicans887,577−254 this month
Democratic lead100,00547.3% of two-party registrations are Republican
Unaffiliated2,034,15450.8% of the state total
Shift since 2020R +251Net change toward that party
Registered voters over time
Republicans
Democrats
Each party has its own scale so month-to-month movement is visible. Solid points come from state reports or posts; hollow points are calculated from the following month's reported change. Dashed lines mark the 2020 level.
Change each month
By county
Original posts
All figures
| Month | Democrats | Change | Republicans | Change | Unaffiliated | Lead | Source |
|---|---|---|---|---|---|---|---|
| Sep 2026 | 987,582 | +2,051 | 887,577 | −254 | 2,034,154 | D +100,005 | State reportMatches post |
| Aug 2026 | 985,531 | −22,277 | 887,831 | −21,816 | 2,016,174 | D +97,700 | State reportMatches post |
| Jul 2026 | 1,007,808 | +2,348 | 909,647 | −796 | 2,072,121 | D +98,161 | State report |
| Jun 2026 | 1,005,460 | +1,162 | 910,443 | +61 | 2,058,133 | D +95,017 | State report |
| May 2026 | 1,004,298 | +1,111 | 910,382 | −56 | 2,045,778 | D +93,916 | State report |
| Apr 2026 | 1,003,187 | +2,119 | 910,438 | +1,477 | 2,032,366 | D +92,749 | State report |
| Mar 2026 | 1,001,068 | +1,916 | 908,961 | +1,929 | 2,017,310 | D +92,107 | State report |
| Feb 2026 | 999,152 | +1,427 | 907,032 | +636 | 2,009,437 | D +92,120 | State report |
| Jan 2026 | 997,725 | +1,840 | 906,396 | +1,039 | 1,997,007 | D +91,329 | State report |
| Dec 2025 | 995,885 | −36,414 | 905,357 | −30,599 | 1,973,638 | D +90,528 | State report |
| Nov 2025 | 1,032,299 | −870 | 935,956 | −132 | 2,064,598 | D +96,343 | State report |
| Oct 2025 | 1,033,169 | −2,311 | 936,088 | +808 | 2,050,518 | D +97,081 | State report |
| Sep 2025 | 1,035,480 | −635 | 935,280 | −722 | 2,039,156 | D +100,200 | State report |
| Aug 2025 | 1,036,115 | −2,044 | 936,002 | −3,184 | 2,029,337 | D +100,113 | State report |
| Jul 2025 | 1,038,159 | −1,318 | 939,186 | −1,085 | 2,021,341 | D +98,973 | State report |
| Jun 2025 | 1,039,477 | −1,078 | 940,271 | −1,025 | 2,011,247 | D +99,206 | State report |
| May 2025 | 1,040,555 | −1,043 | 941,296 | −824 | 2,001,363 | D +99,259 | State report |
| Apr 2025 | 1,041,598 | −1,661 | 942,120 | −646 | 1,990,552 | D +99,478 | State report |
| Mar 2025 | 1,043,259 | −2,267 | 942,766 | −501 | 1,978,510 | D +100,493 | State report |
| Feb 2025 | 1,045,526 | −1,460 | 943,267 | −297 | 1,968,318 | D +102,259 | State report |
| Jan 2025 | 1,046,986 | −3,803 | 943,564 | +1,196 | 1,957,508 | D +103,422 | State report |
| Dec 2024 | 1,050,789 | +3,919 | 942,368 | +5,785 | 1,942,654 | D +108,421 | State report |
| Nov 2024 | 1,046,870 | +24,675 | 936,583 | +25,965 | 1,944,645 | D +110,287 | State report |
| Oct 2024 | 1,022,195 | +14,080 | 910,618 | +8,869 | 1,903,650 | D +111,577 | State report |
| Sep 2024 | 1,008,115 | +10,504 | 901,749 | +5,023 | 1,883,376 | D +106,366 | State report |
| Aug 2024 | 997,611 | −12,270 | 896,726 | −8,974 | 1,862,600 | D +100,885 | State report |
| Jul 2024 | 1,009,881 | +1,635 | 905,700 | +996 | 1,881,951 | D +104,181 | State report |
| Jun 2024 | 1,008,246 | +1,808 | 904,704 | +1,625 | 1,867,492 | D +103,542 | State report |
| May 2024 | 1,006,438 | +2,313 | 903,079 | +3,215 | 1,850,286 | D +103,359 | State report |
| Apr 2024 | 1,004,125 | −18,029 | 899,864 | −9,584 | 1,823,785 | D +104,261 | State report |
| Mar 2024 | 1,022,154 | +1,700 | 909,448 | +2,165 | 1,853,201 | D +112,706 | State report |
| Feb 2024 | 1,020,454 | +37 | 907,283 | +4,099 | 1,835,353 | D +113,171 | State report |
| Jan 2024 | 1,020,417 | +1,097 | 903,184 | +1,965 | 1,816,251 | D +117,233 | State report |
| Dec 2023 | 1,019,320 | −34,065 | 901,219 | −28,342 | 1,792,852 | D +118,101 | State report |
| Nov 2023 | 1,053,385 | +1,447 | 929,561 | +358 | 1,871,868 | D +123,824 | State report |
| Oct 2023 | 1,051,938 | +167 | 929,203 | −325 | 1,855,584 | D +122,735 | State report |
| Sep 2023 | 1,051,771 | −1,145 | 929,528 | −1,394 | 1,841,543 | D +122,243 | State report |
| Aug 2023 | 1,052,916 | +177 | 930,922 | −180 | 1,825,850 | D +121,994 | State report |
| Jul 2023 | 1,052,739 | −1,967 | 931,102 | −603 | 1,812,690 | D +121,637 | State report |
| Jun 2023 | 1,054,706 | +1,029 | 931,705 | +89 | 1,801,956 | D +123,001 | State report |
| May 2023 | 1,053,677 | −3,271 | 931,616 | −1,008 | 1,786,841 | D +122,061 | State report |
| Apr 2023 | 1,056,948 | +1,784 | 932,624 | +497 | 1,779,489 | D +124,324 | State report |
| Mar 2023 | 1,055,164 | +1,576 | 932,127 | +1,313 | 1,761,728 | D +123,037 | State report |
| Feb 2023 | 1,053,588 | +979 | 930,814 | −381 | 1,748,320 | D +122,774 | State report |
| Jan 2023 | 1,052,609 | −362 | 931,195 | −626 | 1,729,570 | D +121,414 | State report |
| Dec 2022 | 1,052,971 | −5,621 | 931,821 | −9,149 | 1,712,558 | D +121,150 | State report |
| Nov 2022 | 1,058,592 | +13,133 | 940,970 | +5,925 | 1,736,967 | D +117,622 | State report |
| Oct 2022 | 1,045,459 | +6,642 | 935,045 | +2,525 | 1,710,800 | D +110,414 | State report |
| Sep 2022 | 1,038,817 | +4,275 | 932,520 | +1,336 | 1,689,102 | D +106,297 | State report |
| Aug 2022 | 1,034,542 | −34,528 | 931,184 | −25,879 | 1,658,017 | D +103,358 | State report |
| Jul 2022 | 1,069,070 | +243 | 957,063 | +159 | 1,715,211 | D +112,007 | State report |
| Jun 2022 | 1,068,827 | −810 | 956,904 | +610 | 1,699,415 | D +111,923 | State report |
| May 2022 | 1,069,637 | −1,377 | 956,294 | −440 | 1,682,574 | D +113,343 | State report |
| Apr 2022 | 1,071,014 | +985 | 956,734 | +1,591 | 1,669,365 | D +114,280 | State report |
| Mar 2022 | 1,070,029 | −775 | 955,143 | +1,041 | 1,652,442 | D +114,886 | State report |
| Feb 2022 | 1,070,804 | −114 | 954,102 | −269 | 1,637,864 | D +116,702 | State report |
| Jan 2022 | 1,070,918 | −5,306 | 954,371 | −3,003 | 1,623,434 | D +116,547 | State report |
| Dec 2021 | 1,076,224 | −49,061 | 957,374 | −41,474 | 1,609,697 | D +118,850 | State report |
| Nov 2021 | 1,125,285 | −1,501 | 998,848 | −2,054 | 1,691,182 | D +126,437 | State report |
| Oct 2021 | 1,126,786 | −94 | 1,000,902 | −863 | 1,678,292 | D +125,884 | State report |
| Sep 2021 | 1,126,880 | −213 | 1,001,765 | −763 | 1,663,271 | D +125,115 | State report |
| Aug 2021 | 1,127,093 | −452 | 1,002,528 | −907 | 1,649,608 | D +124,565 | State report |
| Jul 2021 | 1,127,545 | +365 | 1,003,435 | −393 | 1,635,981 | D +124,110 | State report |
| Jun 2021 | 1,127,180 | +260 | 1,003,828 | −995 | 1,621,674 | D +123,352 | State report |
| May 2021 | 1,126,920 | −342 | 1,004,823 | −1,293 | 1,609,043 | D +122,097 | State report |
| Apr 2021 | 1,127,262 | +417 | 1,006,116 | −1,017 | 1,597,740 | D +121,146 | State report |
| Mar 2021 | 1,126,845 | −86 | 1,007,133 | −4,311 | 1,585,116 | D +119,712 | State report |
| Feb 2021 | 1,126,931 | −723 | 1,011,444 | −14,477 | 1,573,306 | D +115,487 | State report |
| Jan 2021 | 1,127,654 | −366 | 1,025,921 | −1,843 | 1,550,329 | D +101,733 | State report |
| Dec 2020 | 1,128,020 | −1,713 | 1,027,764 | −475 | 1,533,711 | D +100,256 | State report |
| Nov 2020 | 1,129,733 | +32,174 | 1,028,239 | +30,454 | 1,541,199 | D +101,494 | State report |
| Oct 2020 | 1,097,559 | +30,018 | 997,785 | +24,240 | 1,489,012 | D +99,774 | State report |
| Sep 2020 | 1,067,541 | +19,617 | 973,545 | +12,932 | 1,441,872 | D +93,996 | State report |
| Aug 2020 | 1,047,924 | −14,442 | 960,613 | −14,182 | 1,404,016 | D +87,311 | State report |
| Jul 2020 | 1,062,366 | +9,849 | 974,795 | +5,300 | 1,421,291 | D +87,571 | State report |
| Jun 2020 | 1,052,517 | +3,000 | 969,495 | +2,191 | 1,393,617 | D +83,022 | State report |
| May 2020 | 1,049,517 | +7,489 | 967,304 | +3,496 | 1,379,585 | D +82,213 | State report |
| Apr 2020 | 1,042,028 | −6,655 | 963,808 | −15,355 | 1,364,741 | D +78,220 | State report |
| Mar 2020 | 1,048,683 | +17,919 | 979,163 | +8,093 | 1,386,425 | D +69,520 | State report |
| Feb 2020 | 1,030,764 | +8,400 | 971,070 | +3,621 | 1,361,068 | D +59,694 | State report |
| Jan 2020 | 1,022,364 | – | 967,449 | – | 1,344,562 | D +54,915 | State report |
| 2020 level | 1,128,020 | 1,027,764 | D +100,256 | Calculated |