| District ID | 4th District |
| Representative | Madeleine Dean |
| Party Affiliation | Democrat |
| Partisan Voting Index (PVI) | D+7 |
| 19608 |
| 19606 |
| 19605 |
| 19604 |
| 19601 |
| 19565 |
| 19564 |
| 19562 |
| 19560 |
| 19555 |
| 19547 |
| 19539 |
| 19538 |
| 19536 |
| 19534 |
| 19533 |
| 19530 |
| 19526 |
| 19525 |
| 19522 |
| 19518 |
| 19512 |
| 19511 |
| 19510 |
| 19508 |
| 19506 |
| 19505 |
| 19504 |
| 19503 |
| 19492 |
| 19490 |
| 19477 |
| 19474 |
| 19473 |
| 19468 |
| 19464 |
| 19462 |
| 19460 |
| 19456 |
| 19454 |
| 19453 |
| 19446 |
| 19444 |
| 19440 |
| 19438 |
| 19436 |
| 19435 |
| 19428 |
| 19426 |
| 19422 |
| 19406 |
| 19403 |
| 19401 |
| 19095 |
| 19090 |
| 19085 |
| 19075 |
| 19072 |
| 19066 |
| 19046 |
| 19044 |
| 19040 |
| 19038 |
| 19035 |
| 19034 |
| 19031 |
| 19027 |
| 19025 |
| 19012 |
| 19010 |
| 19009 |
| 19006 |
| 19004 |
| 19002 |
| 19001 |
| 18969 |
| 18964 |
| 18084 |
| 18074 |
| 18073 |
| 18070 |
| 18062 |
| 18056 |
| 18054 |
| 18041 |
| 18031 |
| 18011 |