| DemoChoice Web Poll: 2019 San Francisco Board of Supervisors, District 5 |
| 1 candidate will be elected with 23,675 ballots cast. |
| Dean Preston | Vallie Brown | Ryan Lam | Nomvula O'Meara | None of these | Need to win | |
| Round 1 Count | 11239 | 11208 | 950 | 278 | 0 | 11838 |
| Transfers from Nomvula O'Meara | 70 | 51 | 85 | 72 | ||
| Round 2 Count | 11309 | 11259 | 1035 | 0 | 72 | 11802 |
| Transfers from Ryan Lam | 414 | 279 | 342 | |||
| Round 3 Count | 11723 | 11538 | 0 | 0 | 414 | 11631 |
| Status | Elected | Defeated | Defeated | Defeated |
Ballots cast: 23675