By union strength
| State | Share | Rank |
|---|---|---|
| AL | 91.1% | 32 |
| AK | 59.0 | 37 |
| AZ | 59.9 | 1 |
| AR | 73.0 | 4 |
| CA | 81.9 | 46 |
| CO | 80.4 | 17 |
| CT | 91.8 | 35 |
| DE | 80.0 | 33 |
| DC | 72.2 | 19 |
| FL | 69.4 | 2 |
| GA | 81.1 | 7 |
| HI | 78.0 | 51 |
| ID | 70.3 | 16 |
| IL | 85.0 | 44 |
| IN | 93.3 | 21 |
| IA | 91.1 | 25 |
| KS | 77.9 | 20 |
| KY | 92.3 | 24 |
| LA | 46.4 | 10 |
| ME | 73.1 | 30 |
| MD | 80.5 | 29 |
| MA | 72.5 | 31 |
| MI | 93.2 | 36 |
| MN | 92.5 | 38 |
| MS | 80.1 | 6 |
| MO | 80.7 | 14 |
| MT | 66.9 | 49 |
| NE | 87.1 | 26 |
| NV | 74.7 | 27 |
| NH | 48.7 | 22 |
| NJ | 71.7 | 45 |
| NM | 76.7 | 15 |
| NY | 92.5 | 43 |
| NC | 79.0 | 12 |
| ND | 82.7 | 28 |
| OH | 77.5 | 40 |
| OK | 72.6 | 9 |
| OR | 82.3 | 50 |
| PA | 70.3 | 48 |
| RI | 95.9 | 47 |
| SC | 84.8 | 3 |
| SD | 79.1 | 18 |
| TN | 68.0 | 11 |
| TX | 81.8 | 8 |
| UT | 86.7 | 13 |
| VT | 86.2 | 41 |
| VA | 85.9 | 5 |
| WA | 74.5 | 42 |
| WV | 92.0 | 39 |
| WI | 55.4 | 34 |
| WY | 91.3 | 23 |