Data here from the 2020 election results, (may not be totally up to date) all race demographics are a percentage of population and not voter turn out.
State
|
County
|
Pop.
|
Density
|
Voted
|
% Dem.
|
% Rep.
|
Win
|
District of Columbia | district of columbia | 705749 | 4456.84 | 341219 | 0.929969% | 0.0544694% | Democrat |
Maryland | prince george's county | 909327 | 727.409 | 422851 | 0.896789% | 0.0877141% | Democrat |
South Dakota | oglala lakota county | 14177 | 2.61452 | 3200 | 0.884063% | 0.0928125% | Democrat |
Maryland | baltimore city | 593490 | 2830.94 | 236189 | 0.877518% | 0.107431% | Democrat |
Virginia | petersburg city | 31346 | 532.972 | 14081 | 0.879838% | 0.112492% | Democrat |
New York | new york county | 1628706 | 27755.1 | 694904 | 0.867803% | 0.122585% | Democrat |
California | san francisco county | 881549 | 7256.44 | 443458 | 0.852744% | 0.127221% | Democrat |
Virginia | charlottesville city | 47266 | 1781.36 | 24101 | 0.85872% | 0.128376% | Democrat |
Mississippi | claiborne county | 8988 | 7.11977 | 4449 | 0.847831% | 0.135536% | Democrat |
Mississippi | jefferson county | 6990 | 5.19077 | 3908 | 0.851331% | 0.135875% | Democrat |
Georgia | clayton county | 292256 | 796.596 | 112330 | 0.849871% | 0.140755% | Democrat |
Louisiana | orleans parish | 390144 | 889.087 | 177819 | 0.831486% | 0.14995% | Democrat |
Virginia | richmond city | 230436 | 1485.02 | 110469 | 0.834397% | 0.150296% | Democrat |
Georgia | dekalb county | 759297 | 1095.44 | 370746 | 0.831194% | 0.157458% | Democrat |
California | marin county | 258826 | 192.01 | 155801 | 0.823409% | 0.157971% | Democrat |