| District ID | 3rd District |
| Representative | Rosa DeLauro |
| Party Affiliation | Democrat |
| Partisan Voting Index (PVI) | D+9 |
| 06770 |
| 06762 |
| 06712 |
| 06708 |
| 06706 |
| 06615 |
| 06614 |
| 06611 |
| 06607 |
| 06525 |
| 06524 |
| 06519 |
| 06518 |
| 06517 |
| 06516 |
| 06515 |
| 06514 |
| 06513 |
| 06512 |
| 06511 |
| 06510 |
| 06492 |
| 06484 |
| 06483 |
| 06481 |
| 06477 |
| 06473 |
| 06472 |
| 06471 |
| 06461 |
| 06460 |
| 06459 |
| 06457 |
| 06455 |
| 06443 |
| 06437 |
| 06422 |
| 06418 |
| 06405 |
| 06403 |
| 06401 |