| District ID | 4th District |
| Representative | Dan Newhouse |
| Party Affiliation | Republican |
| Partisan Voting Index (PVI) | R+13 |
| 99357 |
| 99356 |
| 99354 |
| 99353 |
| 99352 |
| 99350 |
| 99349 |
| 99346 |
| 99345 |
| 99344 |
| 99343 |
| 99338 |
| 99337 |
| 99336 |
| 99322 |
| 99321 |
| 99320 |
| 99301 |
| 99155 |
| 99135 |
| 99133 |
| 99124 |
| 99123 |
| 99116 |
| 99115 |
| 99103 |
| 98953 |
| 98952 |
| 98951 |
| 98948 |
| 98947 |
| 98944 |
| 98942 |
| 98939 |
| 98938 |
| 98937 |
| 98936 |
| 98935 |
| 98933 |
| 98932 |
| 98930 |
| 98923 |
| 98908 |
| 98903 |
| 98902 |
| 98901 |
| 98862 |
| 98860 |
| 98859 |
| 98858 |
| 98857 |
| 98856 |
| 98855 |
| 98853 |
| 98851 |
| 98850 |
| 98849 |
| 98848 |
| 98846 |
| 98845 |
| 98844 |
| 98843 |
| 98841 |
| 98840 |
| 98837 |
| 98834 |
| 98833 |
| 98832 |
| 98830 |
| 98829 |
| 98827 |
| 98824 |
| 98823 |
| 98819 |
| 98814 |
| 98813 |
| 98812 |
| 98802 |
| 98673 |
| 98672 |
| 98670 |
| 98650 |
| 98635 |
| 98628 |
| 98623 |
| 98620 |
| 98619 |
| 98617 |
| 98613 |
| 98605 |
| 98602 |