| State | Total Vote | D | R | Margin |
%Margin | Democratic | Republican | Other | Democratic | Republican | Other |
| Delaware | 273,255 | 1 | 2 | 88,640 | 32.44% | 65.64% | 33.20% | 1.16% | 179,365 | 90,725 | 3,165 |
| Indiana | 2,229,116 | 1 | 2 | 559,618 | 25.10% | 62.00% | 36.90% | 1.10% | 1,382,151 | 822,533 | 24,432 |
| Missouri | 2,343,999 | 1 | 2 | 406,851 | 17.36% | 58.68% | 41.32% | 0.00% | 1,375,425 | 968,574 | 0 |
| Montana | 407,822 | 2 | 1 | 10,980 | 2.69% | 48.65% | 51.35% | 0.00% | 198,421 | 209,401 | 0 |
| New Hampshire | 516,065 | 2 | 1 | 82,938 | 16.07% | 39.96% | 56.03% | 4.00% | 206,232 | 289,170 | 20,663 |
| North Carolina | 2,595,184 | 1 | 2 | 246,291 | 9.49% | 52.72% | 43.23% | 4.05% | 1,368,246 | 1,121,955 | 104,983 |
| North Dakota | 302,857 | 2 | 1 | 52,553 | 17.35% | 40.89% | 58.24% | 0.86% | 123,845 | 176,398 | 2,614 |
| Rhode Island | 410,307 | 1 | 2 | 115,894 | 28.25% | 63.73% | 35.48% | 0.79% | 261,484 | 145,590 | 3,233 |
| Utah | 761,619 | 3 | 1 | 65,960 | 8.66% | 23.26% | 42.24% | 34.50% | 177,181 | 321,713 | 262,725 |
| Vermont | 285,728 | 1 | 2 | 147,686 | 51.69% | 74.73% | 23.04% | 2.23% | 213,523 | 65,837 | 6,368 |
| Washington | 2,270,531 | 1 | 2 | 98,099 | 4.32% | 52.16% | 47.84% | 0.00% | 1,184,315 | 1,086,216 | 0 |
| West Virginia | 608,692 | 1 | 2 | 127,912 | 21.01% | 60.51% | 39.49% | 0.00% | 368,302 | 240,390 | 0 |
| Total | 13,005,175 | 1 | 2 | 1,499,988 | 11.53% | 54.12% | 42.59% | 3.29% | 7,038,490 | 5,538,502 | 428,183 |
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2012
