The Kentucky State Board of Elections updates voter registration statistics monthly. The most recent report for September 2026 shows that there are 3,389,224 registered voters in the Commonwealth.
Among the approximately 3.39 million registered voters in Kentucky:
- 1,787,225 (52.73%) are female, 1,598,986 (47.18%) are male
- 1,373,500 (40.53 percent) are registered with the Democratic Party, 1,626,732 (48.00 percent) are registered with the Republican Party
- An additional 388,992 (11.48%) are registered as “other” including Independent, Libertarian, Green Party, Constitution Party, etc.
Current county-level registration by party affiliation
In September 2026, the counties with the greatest percentage of voters registered with the Democratic Party include Breathitt (76.65%), Wolfe (71.17%), Knott (66.60%) and Elliott (65.66%). Counties with the greatest percentage of voters registered with the Republican Party include Leslie (85.93%), Clinton (85.48%), Monroe (84.38%) and Clay (84.10%).
Northern Kentucky counties have the highest percentage of voters registered as “other” – Kenton (17.39%), Boone (16.94%) and Campbell (16.01%). In one county – Magoffin – less than 4% are registered in this category.
View and download the most recent registration statistics on the State Board of Elections website here.
Trends in voter registration
Total registration
Between September 2022 and September 2026, total voter registration in Kentucky declined by 200,765 voters, a 5.59% decrease, despite population growth during the same period.
Over these four years:
- Registration increased in only 13 counties: Shelby (7.26%), Rowan (4.38%), Kenton (4.30%), McCracken (3.46%), Grayson (2.74%), Larue (2.36%), Bullitt (2.22%), Pendleton (1.31%), Logan (1.28%), Nelson (0.40%), Pulaski (0.30%), Edmonson (0.25%) and Graves (0.15%).
- Registration declined in the remaining 107 counties
The largest numeric declines occurred in Jefferson (-47,537), Fayette (-27,630) and Christian (-10,347) counties. By percentage the steepest declines were in Christian (-18.25%), Boyd (-13.56%) and Martin (-13.48%).
Party registration statewide
From September 2022 and September 2026:
- Democratic registration declined by 233,711 voters (-14.54%)
- Republican registration declined by 2,451 voters (-0.15%)
- “Other” registration increased by 35,397 voters (+10.01%)
During this period:
- The percent of voters registered as Democrats declined from 44.77% to 40.53%, a 4.24 percentage point decrease
- The percent of voters registered as Republicans increased from 45.38% to 48.00%, a 2.62 percentage point increase
- “Other” registration rose from 9.85% to 11.48%, a 1.63 percentage point increase
Party registration by county
Democrat
From September 2022 and September 2026, the number of registered Democrats declined in every Kentucky county. The largest numeric declines occurred in Jefferson (-34,085), Fayette (-15,200) and Pike (-7,390) counties.
Over this period, the percent of voters registered as Democrats declined the most in Carlisle County (-14.31 percentage points) followed by Carroll (-12.44 percentage points) and Trimble (-12.04 percentage points). The percent of voters registered as Democrats fell by more than 10 percentage points in 13 counties.
The percent of registered Democrats declined by less than one percentage point in three counties: Leslie, Fayette and Clay.
Republican
Between September 2022 and September 2026, the number of registered Republicans increased in 87 counties and declined in 33 counties.
The largest increases occurred in Kenton (+3,143), Bullitt (+2,605) and McCracken (+2,478) counties, while the largest declines were in Jefferson (-19,878), Fayette (-12,846) and Boone (-5,041).
Over this period, the percent of voters registered as Republican increased in 113 counties and declined in seven: Fayette, Leslie, Jefferson, Oldham, Clay, Jackson and Monroe.
Seven counties saw the percent of voters registered as Republicans increase by more than 10 percentage points: Carlisle, Carroll, Trimble, Bracken, Menifee, Ballard and Union.
Other
From September 2022 to September 2026, the number of voters registered as “other” increased in every county except four – Christian, Calloway, Bell and Breathitt.
The largest numeric increases occurred in Jefferson (+6,426), Kenton (+3,747) and Warren (+1,973) counties.
Notably, the percentage of voters registered as “other” increased in every Kentucky county over the four-year period. Boone, Gallatin, Warren, Logan, Simpson and Christian counties saw the largest percentage change in this category.
