1856 Senate Elections
Table of returns — 36 states
| State | Winner | Margin |
|---|---|---|
| South Carolina | Liberal (Liberal) | 8.6% |
| Georgia | Liberal (Liberal) | 26.5% |
| Alabama | Liberal (Liberal) | 19.5% |
| Mississippi | Liberal (Liberal) | 20.6% |
| Orleans | National (National) | 2.8% |
| North Carolina | National (National) | 19.9% |
| Arkansas | Liberal (Liberal) | 12.8% |
| Tennessee | Liberal (Liberal) | 4.9% |
| Texas | Liberal (Liberal) | 24.2% |
| Virginia | National (National) | 5.9% |
| Kentucky | Liberal (Liberal) | 4.1% |
| Maryland | National (National) | 13.0% |
| Delaware | National (National) | 18.2% |
| Pennsylvania | National (National) | 14.2% |
| New Jersey | National (National) | 10.0% |
| Ohio | Popular Democratic (Popular Democratic) | 10.4% |
| New York | Popular Democratic (Popular Democratic) | 18.0% |
| Connecticut | National (National) | 16.3% |
| Massachusetts | National (National) | 7.4% |
| Rhode Island | Popular Democratic (Popular Democratic) | 1.6% |
| New Hampshire | National (National) | 7.2% |
| Vermont | National (National) | 8.6% |
| Maine | National (National) | 3.2% |
| Miami | Liberal (Liberal) | 3.7% |
| Illinois | Popular Democratic (Popular Democratic) | 0.9% |
| Michigan | National (National) | 4.7% |
| Iowa | Popular Democratic (Popular Democratic) | 0.4% |
| Missouri | Liberal (Liberal) | 13.8% |
| Wisconsin | National (National) | 2.4% |
| Marshall | National (National) | 12.3% |
| Austin | Liberal (Liberal) | 9.6% |
| Rio Grande | National (National) | 14.5% |
| Chihuahua | National (National) | 4.5% |
| Sonora | National (National) | 17.2% |
| New Mexico | Liberal (Liberal) | 9.0% |
| California | Popular Democratic (Popular Democratic) | 23.8% |