1818 Senate Elections
Table of returns — 19 states
| State | Winner | Margin |
|---|---|---|
| South Carolina | Admissionist (Admissionist) | 2.5% |
| Georgia | Republican (Republican) | 10.0% |
| Orleans | Admissionist (Admissionist) | 46.4% |
| North Carolina | Admissionist (Admissionist) | 10.4% |
| Tennessee | Admissionist (Admissionist) | 44.8% |
| Virginia | Admissionist (Admissionist) | 7.7% |
| Kentucky | Admissionist (Admissionist) | 49.4% |
| Maryland | National (National) | 8.9% |
| Delaware | National (National) | 12.8% |
| Pennsylvania | Admissionist (Admissionist) | 19.1% |
| New Jersey | National (National) | 4.7% |
| Ohio | Admissionist (Admissionist) | 52.8% |
| New York | Republican (Republican) | 38.8% |
| Connecticut | Tory (Tory) | 16.1% |
| Massachusetts | Tory (Tory) | 43.7% |
| Rhode Island | Tory (Tory) | 7.6% |
| New Hampshire | Admissionist (Admissionist) | 14.4% |
| Vermont | National (National) | 0.4% |
| Massachusetts | Tory (Tory) | 43.7% |