Map | Pie | State | Total Vote | O | M | Margin |
%Margin | Swing% | Obama | McCain | Other |
| | | | | | |
| | | | |
| | Alabama | 2,099,819 | 2 | 1 | 453,067 | 21.58% | 4.04% | 38.74% | 60.32% | 0.94% |
| | Alaska | 326,197 | 2 | 1 | 70,247 | 21.54% | 4.01% | 37.89% | 59.42% | 2.69% |
| | Arizona | 2,303,838 | 2 | 1 | 195,404 | 8.48% | 1.97% | 44.91% | 53.39% | 1.69% |
| | Arkansas | 1,086,617 | 2 | 1 | 215,707 | 19.85% | 10.09% | 38.86% | 58.72% | 2.42% |
| | California | 13,583,083 | 1 | 2 | 3,262,692 | 24.02% | 14.07% | 60.92% | 36.90% | 2.19% |
| | Colorado | 2,401,462 | 1 | 2 | 215,004 | 8.95% | 13.63% | 53.66% | 44.71% | 1.63% |
| | Connecticut | 1,646,793 | 1 | 2 | 368,345 | 22.37% | 12.00% | 60.59% | 38.22% | 1.19% |
| | Delaware | 412,616 | 1 | 2 | 103,085 | 24.98% | 17.39% | 61.91% | 36.93% | 1.16% |
| | D. C. | 265,853 | 1 | 2 | 228,433 | 85.92% | 6.08% | 92.46% | 6.53% | 1.01% |
| | Florida | 8,412,248 | 1 | 2 | 236,148 | 2.81% | 7.81% | 50.91% | 48.10% | 0.99% |
| | Georgia | 3,932,158 | 2 | 1 | 204,636 | 5.20% | 11.38% | 46.90% | 52.10% | 1.00% |
| | Hawaii | 453,568 | 1 | 2 | 205,305 | 45.26% | 36.52% | 71.85% | 26.58% | 1.57% |
| | Idaho | 658,454 | 2 | 1 | 166,572 | 25.30% | 12.82% | 35.91% | 61.21% | 2.89% |
| | Illinois | 5,530,179 | 1 | 2 | 1,388,169 | 25.10% | 14.76% | 61.83% | 36.73% | 1.44% |
| | Indiana | 2,756,658 | 1 | 2 | 28,391 | 1.03% | 21.71% | 49.84% | 48.81% | 1.34% |
| | Iowa | 1,537,123 | 1 | 2 | 146,561 | 9.53% | 10.20% | 53.93% | 44.39% | 1.68% |
| | Kansas | 1,238,873 | 2 | 1 | 184,890 | 14.92% | 10.46% | 41.55% | 56.48% | 1.97% |
| | Kentucky | 1,827,587 | 2 | 1 | 296,477 | 16.22% | 3.64% | 41.15% | 57.37% | 1.49% |
| | Louisiana | 1,960,761 | 2 | 1 | 365,286 | 18.63% | 4.12% | 39.93% | 58.56% | 1.50% |
| | Maine | 731,163 | 1 | 2 | 126,650 | 17.32% | 8.33% | 57.71% | 40.38% | 1.91% |
| | Maryland | 2,631,596 | 1 | 2 | 669,605 | 25.44% | 12.46% | 61.92% | 36.47% | 1.61% |
| | Massachusetts | 3,081,069 | 1 | 2 | 795,244 | 25.81% | 0.65% | 61.80% | 35.99% | 2.21% |
| | Michigan | 5,010,606 | 1 | 2 | 823,940 | 16.44% | 13.03% | 57.33% | 40.89% | 1.78% |
| | Minnesota | 2,910,369 | 1 | 2 | 297,945 | 10.24% | 6.76% | 54.06% | 43.82% | 2.12% |
| | Mississippi | 1,289,939 | 2 | 1 | 169,935 | 13.17% | 6.51% | 43.00% | 56.17% | 0.83% |
| | Missouri | 2,929,111 | 2 | 1 | 3,903 | 0.13% | 7.06% | 49.23% | 49.36% | 1.41% |
| | Montana | 492,750 | 2 | 1 | 11,723 | 2.38% | 18.12% | 47.11% | 49.49% | 3.39% |
| | Nebraska | 801,281 | 2 | 1 | 119,660 | 14.93% | 18.28% | 41.60% | 56.53% | 1.87% |
| | Nevada | 967,848 | 1 | 2 | 120,909 | 12.49% | 15.08% | 55.15% | 42.65% | 2.20% |
| | New Hampshire | 710,970 | 1 | 2 | 68,292 | 9.61% | 8.24% | 54.13% | 44.52% | 1.35% |
| | New Jersey | 3,877,407 | 1 | 2 | 602,215 | 15.53% | 8.85% | 57.14% | 41.61% | 1.26% |
| | New Mexico | 830,158 | 1 | 2 | 125,590 | 15.13% | 15.92% | 56.91% | 41.78% | 1.31% |
| | New York | 7,640,948 | 1 | 2 | 2,052,174 | 26.86% | 8.57% | 62.88% | 36.03% | 1.09% |
| | North Carolina | 4,310,789 | 1 | 2 | 14,177 | 0.33% | 12.76% | 49.70% | 49.38% | 0.92% |
| | North Dakota | 317,738 | 2 | 1 | 27,484 | 8.65% | 18.71% | 44.50% | 53.15% | 2.34% |
| | Ohio | 5,721,831 | 1 | 2 | 262,224 | 4.58% | 6.69% | 51.38% | 46.80% | 1.82% |
| | Oklahoma | 1,462,661 | 2 | 1 | 457,669 | 31.29% | 0.15% | 34.35% | 65.65% | 0.00% |
| | Oregon | 1,827,864 | 1 | 2 | 298,816 | 16.35% | 12.19% | 56.75% | 40.40% | 2.85% |
| | Pennsylvania | 6,015,476 | 1 | 2 | 620,478 | 10.31% | 7.81% | 54.47% | 44.15% | 1.38% |
| | Rhode Island | 471,766 | 1 | 2 | 131,180 | 27.81% | 7.05% | 62.86% | 35.06% | 2.08% |
| | South Carolina | 1,920,969 | 2 | 1 | 172,447 | 8.98% | 8.10% | 44.90% | 53.87% | 1.23% |
| | South Dakota | 381,975 | 2 | 1 | 32,130 | 8.41% | 13.06% | 44.75% | 53.16% | 2.09% |
| | Tennessee | 2,601,982 | 2 | 1 | 391,741 | 15.06% | 0.76% | 41.79% | 56.85% | 1.36% |
| | Texas | 8,087,791 | 2 | 1 | 950,695 | 11.75% | 11.11% | 43.63% | 55.38% | 0.99% |
| | Utah | 958,996 | 2 | 1 | 268,360 | 27.98% | 17.56% | 34.17% | 62.15% | 3.68% |
| | Vermont | 325,046 | 1 | 2 | 120,288 | 37.01% | 16.87% | 67.46% | 30.45% | 2.10% |
| | Virginia | 3,723,260 | 1 | 2 | 234,527 | 6.30% | 14.50% | 52.63% | 46.33% | 1.04% |
| | Washington | 3,053,261 | 1 | 2 | 521,632 | 17.08% | 9.91% | 57.34% | 40.26% | 2.40% |
| | West Virginia | 715,123 | 2 | 1 | 93,609 | 13.09% | 0.23% | 42.49% | 55.58% | 1.93% |
| | Wisconsin | 2,983,417 | 1 | 2 | 414,818 | 13.90% | 13.52% | 56.22% | 42.31% | 1.47% |
| | Wyoming | 254,658 | 2 | 1 | 82,090 | 32.24% | 7.55% | 32.54% | 64.78% | 2.68% |
| | Total | 131,473,705 | 1 | 2 | 9,549,105 | 7.26% | 9.73% | 52.86% | 45.60% | 1.54% |
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