| Election | Apruebo Dignidad AD / FA | Dignidad Ahora DA | New Social Pact NPS / NM | Democratic Convergence CD | Chile Vamos Podemos / Vamos | Party of the People PDG | Christian Social Front FSC |
| | | | | | |
| Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats |
| 2021 | 26,534 | 26.50% | 1 | 1,894 | 1.89% | 0 | 15,929 | 15.91% | 1 | | | | 23,750 | 23.72% | 1 | 15,723 | 15.70% | 0 | 14,834 | 14.82% | 0 |
| 2017 | 11,652 | 12.89% | 0 | | | | 27,770 | 30.72% | 1 | 4,330 | 4.79% | 0 | 38,960 | 43.09% | 2 | | | | | | |
Results of the 2021 general election held on 21 November 2021:[10][11]
| Party | Pact | Party | Pact |
| Votes per commune | Total votes | % | Seats | Votes | % | Seats |
Alto Hos- picio | Cam- iña | Col- chane | Huara | Iqui- que | Pica | Pozo Al- monte |
| Communist Party of Chile | PC | | Apruebo Dignidad | 1,237 | 11 | 8 | 70 | 8,165 | 170 | 236 | 9,897 | 9.88% | 1 | 26,534 | 26.50% | 1 |
| Social Green Regionalist Federation | FREVS | 1,653 | 58 | 49 | 97 | 5,218 | 226 | 278 | 7,579 | 7.57% | 0 |
| Democratic Revolution | RD | 1,065 | 21 | 13 | 62 | 3,667 | 98 | 186 | 5,112 | 5.11% | 0 |
| Comunes | COM | 819 | 61 | 9 | 144 | 2,726 | 61 | 126 | 3,946 | 3.94% | 0 |
| Independent Democratic Union | UDI | | Chile Podemos + | 1,613 | 149 | 104 | 241 | 8,161 | 438 | 394 | 11,100 | 11.09% | 1 | 23,750 | 23.72% | 1 |
| National Renewal | RN | 3,434 | 114 | 159 | 151 | 5,651 | 175 | 323 | 10,007 | 9.99% | 0 |
| Evópoli | EVO | 238 | 11 | 3 | 22 | 1,020 | 32 | 121 | 1,447 | 1.45% | 0 |
| Democratic Independent Regionalist Party | PRI | 263 | 10 | 10 | 29 | 769 | 31 | 84 | 1,196 | 1.19% | 0 |
| Socialist Party of Chile | PS | | New Social Pact | 1,662 | 35 | 22 | 132 | 5,004 | 224 | 503 | 7,582 | 7.57% | 1 | 15,929 | 15.91% | 1 |
| Party for Democracy | PPD | 930 | 18 | 16 | 90 | 5,408 | 97 | 165 | 6,724 | 6.72% | 0 |
| Christian Democratic Party | PDC | 444 | 9 | 7 | 16 | 776 | 68 | 303 | 1,623 | 1.62% | 0 |
| Party of the People | PDG | | | 5,304 | 146 | 207 | 255 | 8,466 | 317 | 1,028 | 15,723 | 15.70% | 0 | 15,723 | 15.70% | 0 |
| Republican Party | REP | | Christian Social Front | 2,291 | 99 | 177 | 152 | 11,307 | 271 | 537 | 14,834 | 14.82% | 0 | 14,834 | 14.82% | 0 |
| Humanist Party | PH | | Dignidad Ahora | 486 | 20 | 16 | 31 | 1,152 | 53 | 136 | 1,894 | 1.89% | 0 | 1,894 | 1.89% | 0 |
| New Time | NT | | | 475 | 9 | 11 | 22 | 845 | 27 | 74 | 1,463 | 1.46% | 0 | 1,463 | 1.46% | 0 |
| Valid votes | 21,914 | 771 | 811 | 1,514 | 68,335 | 2,288 | 4,494 | 100,127 | 100.00% | 3 | 100,127 | 100.00% | 3 |
| Blank votes | 1,112 | 80 | 81 | 131 | 2,840 | 178 | 343 | 4,765 | 4.32% | | | | |
| Rejected votes – other | 1,531 | 32 | 26 | 77 | 3,354 | 100 | 319 | 5,439 | 4.93% | | | | |
| Total polled | 24,557 | 883 | 918 | 1,722 | 74,529 | 2,566 | 5,156 | 110,331 | 42.41% | | | | |
| Registered electors | 60,343 | 2,639 | 3,217 | 9,045 | 167,349 | 5,663 | 11,891 | 260,147 | | | | | |
| Turnout | 40.70% | 33.46% | 28.54% | 19.04% | 44.54% | 45.31% | 43.36% | 42.41% | | | | | |
The following candidates were elected:[10][11]
Danisa Astudillo (PS), 7,582 votes; Matías Ramírez (PC), 9,897 votes; and Renzo Trisotti (UDI), 11,100 votes.
Results of the 2017 general election held on 19 November 2017:[12][13]
| Party | Pact | Party | Pact |
| Votes per commune | Total votes | % | Seats | Votes | % | Seats |
Alto Hos- picio | Cam- iña | Col- chane | Huara | Iqui- que | Pica | Pozo Al- monte |
| Independent Democratic Union | UDI | | Chile Vamos | 2,408 | 170 | 109 | 358 | 15,738 | 663 | 638 | 20,084 | 22.22% | 1 | 38,960 | 43.09% | 2 |
| National Renewal | RN | 4,665 | 207 | 219 | 269 | 10,943 | 282 | 694 | 17,279 | 19.11% | 1 |
| Independent Regionalist Party | PRI | 206 | 9 | 2 | 6 | 591 | 15 | 75 | 904 | 1.00% | 0 |
| Evópoli | EVO | 172 | 7 | 4 | 10 | 446 | 33 | 21 | 693 | 0.77% | 0 |
| Communist Party of Chile | PC | | Nueva Mayoría | 2,717 | 101 | 53 | 249 | 10,136 | 475 | 601 | 14,332 | 15.85% | 1 | 27,770 | 30.72% | 1 |
| Socialist Party of Chile | PS | 1,674 | 41 | 28 | 80 | 6,030 | 161 | 421 | 8,435 | 9.33% | 0 |
| Social Democrat Radical Party | PRSD | 841 | 19 | 32 | 55 | 1,979 | 43 | 220 | 3,189 | 3.53% | 0 |
| Party for Democracy | PPD | 371 | 19 | 7 | 54 | 1,286 | 13 | 64 | 1,814 | 2.01% | 0 |
| Liberal Party of Chile | PL | | Broad Front | 734 | 8 | 12 | 47 | 3,799 | 132 | 242 | 4,974 | 5.50% | 0 | 11,652 | 12.89% | 0 |
| Equality Party | IGUAL | 490 | 7 | 12 | 17 | 2,762 | 31 | 72 | 3,391 | 3.75% | 0 |
| Humanist Party | PH | 389 | 10 | 7 | 13 | 1,921 | 24 | 54 | 2,418 | 2.67% | 0 |
| Citizen Power | PODER | 178 | 5 | 4 | 6 | 650 | 9 | 17 | 869 | 0.96% | 0 |
| Christian Democratic Party | PDC | | Democratic Convergence | 747 | 34 | 33 | 139 | 2,881 | 209 | 287 | 4,330 | 4.79% | 0 | 4,330 | 4.79% | 0 |
| Freddy Marcos Araneda Barahona (Independent) | Ind | | | 1,085 | 13 | 9 | 36 | 2,428 | 26 | 149 | 3,746 | 4.14% | 0 | 3,746 | 4.14% | 0 |
| Amplitude | AMP | | Sumemos | 409 | 17 | 36 | 56 | 1,206 | 79 | 269 | 2,072 | 2.29% | 0 | 2,504 | 2.77% | 0 |
| Todos | TODOS | 131 | 3 | 2 | 5 | 257 | 11 | 23 | 432 | 0.48% | 0 |
| País | PAIS | | All Over Chile | 283 | 21 | 12 | 32 | 981 | 39 | 76 | 1,444 | 1.60% | 0 | 1,444 | 1.60% | 0 |
| Valid votes | 17,500 | 691 | 581 | 1,432 | 64,034 | 2,245 | 3,923 | 90,406 | 100.00% | 3 | 90,406 | 100.00% | 3 |
| Blank votes | 672 | 55 | 47 | 73 | 1,988 | 97 | 269 | 3,201 | 3.33% | | | | |
| Rejected votes – other | 523 | 18 | 16 | 51 | 1,776 | 62 | 171 | 2,617 | 2.72% | | | | |
| Total polled | 18,695 | 764 | 644 | 1,556 | 67,798 | 2,404 | 4,363 | 96,224 | 39.54% | | | | |
| Registered electors | 51,451 | 2,820 | 3,379 | 9,046 | 160,432 | 5,000 | 11,215 | 243,343 | | | | | |
| Turnout | 36.34% | 27.09% | 19.06% | 17.20% | 42.26% | 48.08% | 38.90% | 39.54% | | | | | |
The following candidates were elected:[12][13]
Ramón Galleguillos (RN), 17,279 votes; Hugo Gutiérrez (PC), 14,332 votes; and Renzo Trisotti (UDI), 20,084 votes.