| District ID | 1st District |
| Representative | Suzanne Bonamici |
| Party Affiliation | Democrat |
| Partisan Voting Index (PVI) | D+9 |
| 97368 |
| 97239 |
| 97232 |
| 97231 |
| 97229 |
| 97225 |
| 97221 |
| 97219 |
| 97214 |
| 97210 |
| 97209 |
| 97205 |
| 97204 |
| 97201 |
| 97149 |
| 97147 |
| 97146 |
| 97145 |
| 97144 |
| 97141 |
| 97140 |
| 97138 |
| 97136 |
| 97135 |
| 97134 |
| 97133 |
| 97132 |
| 97131 |
| 97130 |
| 97125 |
| 97124 |
| 97123 |
| 97122 |
| 97121 |
| 97119 |
| 97118 |
| 97117 |
| 97116 |
| 97113 |
| 97112 |
| 97110 |
| 97109 |
| 97108 |
| 97107 |
| 97106 |
| 97103 |
| 97102 |
| 97078 |
| 97064 |
| 97056 |
| 97054 |
| 97053 |
| 97051 |
| 97048 |
| 97018 |
| 97016 |
| 97008 |
| 97007 |
| 97006 |
| 97005 |
| 97003 |