| District ID | 41st District |
| Representative | Ken Calvert |
| Party Affiliation | Republican |
| Partisan Voting Index (PVI) | D+12 |
| 92883 |
| 92882 |
| 92881 |
| 92880 |
| 92879 |
| 92878 |
| 92860 |
| 92596 |
| 92595 |
| 92592 |
| 92587 |
| 92586 |
| 92585 |
| 92584 |
| 92583 |
| 92582 |
| 92571 |
| 92570 |
| 92567 |
| 92563 |
| 92562 |
| 92561 |
| 92555 |
| 92549 |
| 92548 |
| 92545 |
| 92544 |
| 92543 |
| 92539 |
| 92536 |
| 92532 |
| 92530 |
| 92508 |
| 92505 |
| 92504 |
| 92503 |
| 92373 |
| 92320 |
| 92282 |
| 92274 |
| 92270 |
| 92264 |
| 92262 |
| 92260 |
| 92258 |
| 92253 |
| 92240 |
| 92234 |
| 92223 |
| 92220 |
| 92211 |
| 92210 |
| 92203 |
| 91752 |