| District ID | 12th District |
| Representative | Summer Lee |
| Party Affiliation | Democrat |
| Partisan Voting Index (PVI) | R+17 |
| 15698 |
| 15692 |
| 15679 |
| 15678 |
| 15675 |
| 15672 |
| 15668 |
| 15665 |
| 15663 |
| 15660 |
| 15647 |
| 15644 |
| 15642 |
| 15637 |
| 15636 |
| 15632 |
| 15626 |
| 15625 |
| 15623 |
| 15617 |
| 15615 |
| 15611 |
| 15601 |
| 15332 |
| 15261 |
| 15260 |
| 15241 |
| 15239 |
| 15236 |
| 15235 |
| 15234 |
| 15233 |
| 15232 |
| 15227 |
| 15226 |
| 15224 |
| 15222 |
| 15221 |
| 15220 |
| 15219 |
| 15218 |
| 15217 |
| 15216 |
| 15215 |
| 15214 |
| 15213 |
| 15212 |
| 15211 |
| 15210 |
| 15208 |
| 15207 |
| 15206 |
| 15205 |
| 15204 |
| 15203 |
| 15201 |
| 15148 |
| 15147 |
| 15146 |
| 15145 |
| 15140 |
| 15137 |
| 15135 |
| 15133 |
| 15132 |
| 15131 |
| 15129 |
| 15122 |
| 15120 |
| 15112 |
| 15110 |
| 15106 |
| 15104 |
| 15102 |
| 15089 |
| 15088 |
| 15085 |
| 15083 |
| 15068 |
| 15063 |
| 15047 |
| 15045 |
| 15037 |
| 15035 |
| 15034 |
| 15025 |
| 15020 |
| 15018 |
| 15017 |