Map | Pie | State | Total Vote | O | R | Margin |
%Margin | Swing% | Obama | Romney | Other |
| | | | | | |
| | | | |
| | Alabama | 2,074,338 | 2 | 1 | 460,229 | 22.19% | 0.61% | 38.36% | 60.55% | 1.10% |
| | Alaska | 300,495 | 2 | 1 | 42,036 | 13.99% | 7.55% | 40.81% | 54.80% | 4.39% |
| | Arizona | 2,306,559 | 2 | 1 | 208,422 | 9.04% | 0.55% | 44.45% | 53.48% | 2.07% |
| | Arkansas | 1,069,468 | 2 | 1 | 253,335 | 23.69% | 3.84% | 36.88% | 60.57% | 2.55% |
| | California | 13,055,815 | 1 | 2 | 3,014,327 | 23.09% | 0.93% | 60.16% | 37.07% | 2.77% |
| | Colorado | 2,571,846 | 1 | 2 | 137,859 | 5.36% | 3.59% | 51.45% | 46.09% | 2.47% |
| | Connecticut | 1,558,993 | 1 | 2 | 270,210 | 17.33% | 5.04% | 58.06% | 40.72% | 1.22% |
| | Delaware | 413,921 | 1 | 2 | 77,100 | 18.63% | 6.36% | 58.61% | 39.98% | 1.41% |
| | D. C. | 293,764 | 1 | 2 | 245,689 | 83.63% | 2.29% | 90.91% | 7.28% | 1.81% |
| | Florida | 8,492,175 | 1 | 2 | 74,309 | 0.88% | 1.93% | 49.90% | 49.03% | 1.07% |
| | Georgia | 3,908,369 | 2 | 1 | 304,861 | 7.80% | 2.60% | 45.39% | 53.19% | 1.43% |
| | Hawaii | 434,697 | 1 | 2 | 185,643 | 42.71% | 2.56% | 70.55% | 27.84% | 1.62% |
| | Idaho | 656,742 | 2 | 1 | 208,124 | 31.69% | 6.39% | 32.40% | 64.09% | 3.51% |
| | Illinois | 5,251,432 | 1 | 2 | 884,296 | 16.84% | 8.26% | 57.50% | 40.66% | 1.84% |
| | Indiana | 2,633,143 | 2 | 1 | 268,597 | 10.20% | 11.23% | 43.84% | 54.04% | 2.13% |
| | Iowa | 1,582,180 | 1 | 2 | 91,927 | 5.81% | 3.72% | 51.99% | 46.18% | 1.83% |
| | Kansas | 1,157,532 | 2 | 1 | 249,901 | 21.59% | 6.67% | 38.00% | 59.59% | 2.40% |
| | Kentucky | 1,798,048 | 2 | 1 | 407,820 | 22.68% | 6.46% | 37.78% | 60.47% | 1.75% |
| | Louisiana | 1,994,065 | 2 | 1 | 343,121 | 17.21% | 1.42% | 40.58% | 57.78% | 1.64% |
| | Maine | 713,180 | 1 | 2 | 109,030 | 15.29% | 2.03% | 56.27% | 40.98% | 2.75% |
| | Maryland | 2,707,327 | 1 | 2 | 705,975 | 26.08% | 0.63% | 61.97% | 35.90% | 2.13% |
| | Massachusetts | 3,167,767 | 1 | 2 | 733,301 | 23.15% | 2.66% | 60.67% | 37.52% | 1.82% |
| | Michigan | 4,745,316 | 1 | 2 | 449,313 | 9.47% | 6.98% | 54.04% | 44.58% | 1.38% |
| | Minnesota | 2,936,561 | 1 | 2 | 225,942 | 7.69% | 2.54% | 52.65% | 44.96% | 2.39% |
| | Mississippi | 1,285,584 | 2 | 1 | 147,797 | 11.50% | 1.68% | 43.79% | 55.29% | 0.92% |
| | Missouri | 2,763,689 | 2 | 1 | 258,644 | 9.36% | 9.23% | 44.28% | 53.64% | 2.08% |
| | Montana | 484,484 | 2 | 1 | 66,089 | 13.64% | 11.26% | 41.66% | 55.30% | 3.04% |
| | Nebraska | 794,379 | 2 | 1 | 172,983 | 21.78% | 6.84% | 38.03% | 59.80% | 2.17% |
| | Nevada | 1,014,918 | 1 | 2 | 67,806 | 6.68% | 5.81% | 52.36% | 45.68% | 1.97% |
| | New Hampshire | 710,972 | 1 | 2 | 39,643 | 5.58% | 4.03% | 51.98% | 46.40% | 1.62% |
| | New Jersey | 3,651,140 | 1 | 2 | 647,861 | 17.74% | 2.21% | 58.25% | 40.50% | 1.25% |
| | New Mexico | 783,757 | 1 | 2 | 79,547 | 10.15% | 4.98% | 52.99% | 42.84% | 4.16% |
| | New York | 7,081,536 | 1 | 2 | 1,995,381 | 28.18% | 1.32% | 63.35% | 35.17% | 1.49% |
| | North Carolina | 4,505,372 | 2 | 1 | 92,004 | 2.04% | 2.37% | 48.35% | 50.39% | 1.26% |
| | North Dakota | 322,627 | 2 | 1 | 63,336 | 19.63% | 10.98% | 38.69% | 58.32% | 2.99% |
| | Ohio | 5,590,934 | 1 | 2 | 166,272 | 2.97% | 1.61% | 50.58% | 47.60% | 1.82% |
| | Oklahoma | 1,334,872 | 2 | 1 | 447,778 | 33.54% | 2.25% | 33.23% | 66.77% | 0.00% |
| | Oregon | 1,789,270 | 1 | 2 | 216,313 | 12.09% | 4.26% | 54.24% | 42.15% | 3.61% |
| | Pennsylvania | 5,755,620 | 1 | 2 | 309,840 | 5.38% | 4.93% | 51.95% | 46.57% | 1.48% |
| | Rhode Island | 446,049 | 1 | 2 | 122,473 | 27.46% | 0.35% | 62.70% | 35.24% | 2.06% |
| | South Carolina | 1,964,118 | 2 | 1 | 205,704 | 10.47% | 1.50% | 44.09% | 54.56% | 1.35% |
| | South Dakota | 363,815 | 2 | 1 | 65,571 | 18.02% | 9.61% | 39.87% | 57.89% | 2.24% |
| | Tennessee | 2,460,904 | 2 | 1 | 501,621 | 20.38% | 5.33% | 39.04% | 59.42% | 1.54% |
| | Texas | 7,999,657 | 2 | 1 | 1,261,719 | 15.77% | 4.02% | 41.35% | 57.13% | 1.52% |
| | Utah | 1,020,861 | 2 | 1 | 488,787 | 47.88% | 19.90% | 24.67% | 72.55% | 2.79% |
| | Vermont | 299,290 | 1 | 2 | 106,541 | 35.60% | 1.41% | 66.57% | 30.97% | 2.46% |
| | Virginia | 3,854,489 | 1 | 2 | 149,298 | 3.87% | 2.43% | 51.16% | 47.28% | 1.56% |
| | Washington | 3,145,958 | 1 | 2 | 464,726 | 14.77% | 2.31% | 55.80% | 41.03% | 3.18% |
| | West Virginia | 672,119 | 2 | 1 | 179,386 | 26.69% | 13.60% | 35.45% | 62.14% | 2.41% |
| | Wisconsin | 3,068,434 | 1 | 2 | 213,019 | 6.94% | 6.96% | 52.83% | 45.89% | 1.29% |
| | Wyoming | 249,061 | 2 | 1 | 101,676 | 40.82% | 8.59% | 27.82% | 68.64% | 3.54% |
| | Total | 129,237,642 | 1 | 2 | 4,984,100 | 3.86% | 3.41% | 51.01% | 47.15% | 1.85% |
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