| State | Total Vote | B | K | Margin |
%Margin | Swing% | Bush | Kerry | Other |
| Alabama | 1,883,449 | 1 | 2 | 482,461 | 25.62% | 10.74% | 62.46% | 36.84% | 0.70% |
| Alaska | 312,598 | 1 | 2 | 79,864 | 25.55% | 5.41% | 61.07% | 35.52% | 3.42% |
| Arizona | 2,012,585 | 1 | 2 | 210,770 | 10.47% | 4.19% | 54.87% | 44.40% | 0.73% |
| Arkansas | 1,054,945 | 1 | 2 | 102,945 | 9.76% | 4.32% | 54.31% | 44.55% | 1.15% |
| California | 12,421,861 | 2 | 1 | 1,235,659 | 9.95% | 1.85% | 44.36% | 54.30% | 1.34% |
| Colorado | 2,130,330 | 1 | 2 | 99,523 | 4.67% | 3.68% | 51.69% | 47.02% | 1.28% |
| Connecticut | 1,578,769 | 2 | 1 | 163,662 | 10.37% | 7.10% | 43.95% | 54.31% | 1.74% |
| Delaware | 375,190 | 2 | 1 | 28,492 | 7.59% | 5.46% | 45.75% | 53.35% | 0.90% |
| D. C. | 227,586 | 2 | 1 | 181,714 | 79.84% | 3.64% | 9.34% | 89.18% | 1.48% |
| Florida | 7,609,810 | 1 | 2 | 380,978 | 5.01% | 5.00% | 52.10% | 47.09% | 0.81% |
| Georgia | 3,301,875 | 1 | 2 | 548,105 | 16.60% | 4.91% | 57.97% | 41.37% | 0.65% |
| Hawaii | 429,013 | 2 | 1 | 37,517 | 8.74% | 9.58% | 45.26% | 54.01% | 0.73% |
| Idaho | 598,447 | 1 | 2 | 228,137 | 38.12% | 1.41% | 68.38% | 30.26% | 1.36% |
| Illinois | 5,274,322 | 2 | 1 | 545,604 | 10.34% | 1.67% | 44.48% | 54.82% | 0.70% |
| Indiana | 2,468,002 | 1 | 2 | 510,427 | 20.68% | 5.05% | 59.94% | 39.26% | 0.79% |
| Iowa | 1,506,908 | 1 | 2 | 10,059 | 0.67% | 0.98% | 49.90% | 49.23% | 0.87% |
| Kansas | 1,187,756 | 1 | 2 | 301,463 | 25.38% | 4.58% | 62.00% | 36.62% | 1.37% |
| Kentucky | 1,795,860 | 1 | 2 | 356,706 | 19.86% | 4.74% | 59.55% | 39.69% | 0.76% |
| Louisiana | 1,943,106 | 1 | 2 | 281,870 | 14.51% | 6.83% | 56.72% | 42.22% | 1.06% |
| Maine | 740,752 | 2 | 1 | 66,641 | 9.00% | 3.88% | 44.58% | 53.57% | 1.85% |
| Maryland | 2,386,678 | 2 | 1 | 309,790 | 12.98% | 3.41% | 42.93% | 55.91% | 1.15% |
| Massachusetts | 2,912,388 | 2 | 1 | 732,691 | 25.16% | 2.14% | 36.78% | 61.94% | 1.29% |
| Michigan | 4,839,252 | 2 | 1 | 165,437 | 3.42% | 1.71% | 47.81% | 51.23% | 0.96% |
| Minnesota | 2,828,387 | 2 | 1 | 98,319 | 3.48% | 1.07% | 47.61% | 51.09% | 1.30% |
| Mississippi | 1,152,365 | 1 | 2 | 226,887 | 19.69% | 2.78% | 59.44% | 39.75% | 0.81% |
| Missouri | 2,731,364 | 1 | 2 | 196,542 | 7.20% | 3.86% | 53.30% | 46.10% | 0.60% |
| Montana | 450,445 | 1 | 2 | 92,353 | 20.50% | 4.57% | 59.07% | 38.56% | 2.37% |
| Nebraska | 778,186 | 1 | 2 | 258,486 | 33.22% | 4.22% | 65.90% | 32.68% | 1.42% |
| Nevada | 829,587 | 1 | 2 | 21,500 | 2.59% | 0.95% | 50.47% | 47.88% | 1.65% |
| New Hampshire | 677,738 | 2 | 1 | 9,274 | 1.37% | 2.64% | 48.87% | 50.24% | 0.88% |
| New Jersey | 3,611,691 | 2 | 1 | 241,427 | 6.68% | 9.15% | 46.24% | 52.92% | 0.84% |
| New Mexico | 756,304 | 1 | 2 | 5,988 | 0.79% | 0.85% | 49.84% | 49.05% | 1.11% |
| New York | 7,391,036 | 2 | 1 | 1,351,713 | 18.29% | 6.69% | 40.08% | 58.37% | 1.54% |
| North Carolina | 3,501,007 | 1 | 2 | 435,317 | 12.43% | 0.39% | 56.02% | 43.58% | 0.40% |
| North Dakota | 312,833 | 1 | 2 | 85,599 | 27.36% | 0.24% | 62.86% | 35.50% | 1.64% |
| Ohio | 5,627,908 | 1 | 2 | 118,601 | 2.11% | 1.40% | 50.81% | 48.71% | 0.48% |
| Oklahoma | 1,463,758 | 1 | 2 | 455,826 | 31.14% | 9.26% | 65.57% | 34.43% | 0.00% |
| Oregon | 1,836,782 | 2 | 1 | 76,332 | 4.16% | 3.71% | 47.19% | 51.35% | 1.46% |
| Pennsylvania | 5,769,590 | 2 | 1 | 144,248 | 2.50% | 1.67% | 48.42% | 50.92% | 0.65% |
| Rhode Island | 437,134 | 2 | 1 | 90,714 | 20.75% | 8.32% | 38.67% | 59.42% | 1.91% |
| South Carolina | 1,617,730 | 1 | 2 | 276,275 | 17.08% | 1.15% | 57.98% | 40.90% | 1.12% |
| South Dakota | 388,215 | 1 | 2 | 83,340 | 21.47% | 1.27% | 59.91% | 38.44% | 1.65% |
| Tennessee | 2,437,319 | 1 | 2 | 347,898 | 14.27% | 10.41% | 56.80% | 42.53% | 0.68% |
| Texas | 7,410,765 | 1 | 2 | 1,694,213 | 22.86% | 1.54% | 61.09% | 38.22% | 0.69% |
| Utah | 927,844 | 1 | 2 | 422,543 | 45.54% | 5.05% | 71.54% | 26.00% | 2.47% |
| Vermont | 312,309 | 2 | 1 | 62,887 | 20.14% | 10.20% | 38.80% | 58.94% | 2.26% |
| Virginia | 3,198,367 | 1 | 2 | 262,217 | 8.20% | 0.16% | 53.68% | 45.48% | 0.83% |
| Washington | 2,859,084 | 2 | 1 | 205,307 | 7.18% | 1.60% | 45.64% | 52.82% | 1.54% |
| West Virginia | 755,887 | 1 | 2 | 97,237 | 12.86% | 6.54% | 56.06% | 43.20% | 0.74% |
| Wisconsin | 2,997,007 | 2 | 1 | 11,384 | 0.38% | 0.16% | 49.32% | 49.70% | 0.98% |
| Wyoming | 243,428 | 1 | 2 | 96,853 | 39.79% | 0.27% | 68.86% | 29.07% | 2.06% |
| Total | 122,295,552 | 1 | 2 | 3,012,171 | 2.46% | 2.98% | 50.73% | 48.27% | 1.00% |
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