The Grange ward by-election was held on 26 August 2021.
| Name of candidate | Description (if any) | Number of votes* |
|---|---|---|
| DAVIES, Mark Stuart | Liberal Democrat | 64 |
| FARRELL-JARVIS, Harvey Montgomery | Independent | 374 |
*the elected candidate is highlighted in bold.
Voting summary
- vacant seats: 1
- electorate: 3,651
- ballot papers issued: 443
- turnout: 12.13%