| 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 | 91,663 | 25.71% | 3 | 13,864 | 3.89% | 0 | 59,184 | 16.60% | 2 | | | | 86,686 | 24.31% | 2 | 29,214 | 8.19% | 0 | 48,152 | 13.50% | 1 |
| 2017 | 80,201 | 24.90% | 2 | | | | 63,604 | 19.75% | 2 | 33,824 | 10.50% | 1 | 120,025 | 37.27% | 3 | | | | | | |
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 |
Algar- robo | Carta- gena | Casa- blanca | Concón | Easter Island | El Quisco | El Tabo | Juan Fernán- dez | San Anto- nio | Santo Dom- ingo | Val- paraíso | Viña del Mar |
| Democratic Revolution | RD | | Apruebo Dignidad | 409 | 284 | 783 | 1,431 | 101 | 418 | 357 | 59 | 1,487 | 247 | 12,775 | 13,002 | 31,353 | 8.79% | 1 | 91,663 | 25.71% | 3 |
| Comunes | COM | 422 | 1,234 | 447 | 592 | 60 | 561 | 630 | 7 | 9,897 | 708 | 5,781 | 4,781 | 25,120 | 7.04% | 1 |
| Communist Party of Chile | PC | 271 | 284 | 303 | 708 | 76 | 567 | 412 | 3 | 1,230 | 83 | 6,957 | 6,788 | 17,682 | 4.96% | 1 |
| Social Convergence | CS | 263 | 145 | 183 | 586 | 70 | 362 | 299 | 7 | 1,426 | 162 | 4,294 | 3,709 | 11,506 | 3.23% | 0 |
| Social Green Regionalist Federation | FREVS | 97 | 73 | 116 | 283 | 53 | 116 | 120 | 1 | 261 | 32 | 2,000 | 2,850 | 6,002 | 1.68% | 0 |
| Evópoli | EVO | | Chile Podemos + | 592 | 979 | 961 | 5,360 | 1,051 | 430 | 465 | 21 | 2,320 | 833 | 6,379 | 15,018 | 34,409 | 9.65% | 1 | 86,686 | 24.31% | 2 |
| National Renewal | RN | 971 | 641 | 956 | 1,681 | 87 | 706 | 653 | 29 | 2,470 | 761 | 8,245 | 14,401 | 31,601 | 8.86% | 1 |
| Independent Democratic Union | UDI | 533 | 670 | 376 | 1,431 | 66 | 319 | 470 | 5 | 1,081 | 693 | 7,914 | 7,118 | 20,676 | 5.80% | 0 |
| Radical Party of Chile | PR | | New Social Pact | 168 | 132 | 520 | 1,380 | 27 | 216 | 227 | 4 | 495 | 65 | 12,483 | 10,662 | 26,379 | 7.40% | 1 | 59,184 | 16.60% | 2 |
| Socialist Party of Chile | PS | 184 | 141 | 275 | 504 | 52 | 195 | 180 | 15 | 1,146 | 139 | 2,921 | 3,993 | 9,745 | 2.73% | 1 |
| Christian Democratic Party | PDC | 216 | 267 | 361 | 425 | 42 | 265 | 198 | 9 | 877 | 171 | 3,218 | 2,828 | 8,877 | 2.49% | 0 |
| Liberal Party of Chile | PL | 209 | 284 | 226 | 392 | 96 | 208 | 138 | 11 | 644 | 107 | 2,593 | 2,421 | 7,329 | 2.06% | 0 |
| Party for Democracy | PPD | 79 | 114 | 218 | 455 | 33 | 77 | 113 | 6 | 330 | 59 | 1,394 | 3,976 | 6,854 | 1.92% | 0 |
| Republican Party | REP | | Christian Social Front | 1,370 | 771 | 1,277 | 4,304 | 110 | 831 | 684 | 18 | 2,460 | 1,576 | 12,345 | 22,406 | 48,152 | 13.50% | 1 | 48,152 | 13.50% | 1 |
| Party of the People | PDG | | | 430 | 612 | 746 | 1,420 | 154 | 569 | 460 | 38 | 3,326 | 374 | 9,834 | 11,251 | 29,214 | 8.19% | 0 | 29,214 | 8.19% | 0 |
| United Centre | CU | | United Independents | 369 | 380 | 443 | 752 | 161 | 371 | 329 | 11 | 1,367 | 204 | 5,356 | 4,268 | 14,011 | 3.93% | 0 | 14,011 | 3.93% | 0 |
| Equality Party | IGUAL | | Dignidad Ahora | 404 | 199 | 222 | 304 | 48 | 231 | 174 | 10 | 896 | 80 | 3,495 | 2,377 | 8,440 | 2.37% | 0 | 13,864 | 3.89% | 0 |
| Humanist Party | PH | 60 | 78 | 97 | 127 | 45 | 126 | 68 | 2 | 426 | 34 | 3,419 | 942 | 5,424 | 1.52% | 0 |
| Patriotic Union | UPA | | | 156 | 194 | 212 | 398 | 39 | 143 | 145 | 2 | 781 | 115 | 2,382 | 2,545 | 7,112 | 1.99% | 0 | 7,112 | 1.99% | 0 |
| Revolutionary Workers Party | PTR | | | 97 | 148 | 331 | 228 | 48 | 142 | 125 | 8 | 683 | 85 | 2,797 | 2,000 | 6,692 | 1.88% | 0 | 6,692 | 1.88% | 0 |
| Valid votes | 7,300 | 7,630 | 9,053 | 22,761 | 2,419 | 6,853 | 6,247 | 266 | 33,603 | 6,528 | 116,582 | 137,336 | 356,578 | 100.00% | 8 | 356,578 | 100.00% | 8 |
| Blank votes | 553 | 593 | 1,093 | 1,171 | 425 | 554 | 452 | 43 | 2,742 | 552 | 6,390 | 6,636 | 21,204 | 5.31% | | | | |
| Rejected votes – other | 361 | 572 | 816 | 1,030 | 186 | 422 | 415 | 12 | 2,785 | 362 | 7,968 | 6,843 | 21,772 | 5.45% | | | | |
| Total polled | 8,214 | 8,795 | 10,962 | 24,962 | 3,030 | 7,829 | 7,114 | 321 | 39,130 | 7,442 | 130,940 | 150,815 | 399,554 | 49.17% | | | | |
| Registered electors | 14,805 | 18,730 | 22,793 | 40,829 | 6,493 | 14,675 | 12,832 | 930 | 78,647 | 11,869 | 287,931 | 302,008 | 812,542 | | | | | |
| Turnout | 55.48% | 46.96% | 48.09% | 61.14% | 46.67% | 53.35% | 55.44% | 34.52% | 49.75% | 62.70% | 45.48% | 49.94% | 49.17% | | | | | |
The following candidates were elected:[10][11]
Jorge Brito (RD), 23,603 votes; Andrés Celis (RN), 18,978 votes; Luis Alberto Cuello (PC), 13,342 votes; Tomás Lagomarsino (PR), 26,379 votes; Tomás de Rementería (PS), 5,817 votes; Camila Rojas (COM), 17,798 votes; Luis Sánchez (REP), 16,376 votes; and Hotuiti Teao (EVO), 16,058 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 |
Algar- robo | Carta- gena | Casa- blanca | Concón | Easter Island | El Quisco | El Tabo | Juan Fernán- dez | San Anto- nio | Santo Dom- ingo | Val- paraíso | Viña del Mar |
| Independent Democratic Union | UDI | | Chile Vamos | 1,660 | 2,378 | 2,459 | 4,830 | 1,051 | 1,439 | 1,249 | 86 | 7,572 | 2,577 | 19,792 | 27,834 | 72,927 | 22.64% | 2 | 120,025 | 37.27% | 3 |
| National Renewal | RN | 671 | 620 | 930 | 4,221 | 75 | 489 | 454 | 24 | 1,323 | 509 | 11,361 | 23,580 | 44,257 | 13.74% | 1 |
| Evópoli | EVO | 45 | 22 | 38 | 308 | 9 | 25 | 20 | 3 | 71 | 46 | 711 | 1,543 | 2,841 | 0.88% | 0 |
| Equality Party | IGUAL | | Broad Front | 364 | 776 | 490 | 1,342 | 76 | 522 | 395 | 18 | 8,342 | 498 | 14,460 | 10,238 | 37,521 | 11.65% | 1 | 80,201 | 24.90% | 2 |
| Democratic Revolution | RD | 176 | 206 | 344 | 1,002 | 53 | 164 | 128 | 9 | 949 | 104 | 10,496 | 8,926 | 22,557 | 7.00% | 1 |
| Humanist Party | PH | 71 | 86 | 195 | 510 | 36 | 89 | 61 | 9 | 362 | 37 | 8,701 | 4,868 | 15,025 | 4.66% | 0 |
| Citizen Power | PODER | 28 | 48 | 124 | 178 | 13 | 36 | 33 | 3 | 186 | 15 | 2,982 | 1,452 | 5,098 | 1.58% | 0 |
| Party for Democracy | PPD | | Nueva Mayoría | 223 | 626 | 545 | 1,408 | 69 | 283 | 289 | 69 | 1,330 | 191 | 5,094 | 13,695 | 23,822 | 7.40% | 1 | 63,604 | 19.75% | 2 |
| Socialist Party of Chile | PS | 435 | 300 | 537 | 1,114 | 42 | 319 | 388 | 7 | 1,763 | 195 | 8,379 | 8,163 | 21,642 | 6.72% | 1 |
| Communist Party of Chile | PC | 159 | 360 | 257 | 573 | 37 | 397 | 256 | 7 | 1,561 | 193 | 7,359 | 4,406 | 15,565 | 4.83% | 0 |
| Social Democrat Radical Party | PRSD | 34 | 51 | 212 | 119 | 12 | 53 | 35 | 4 | 222 | 28 | 1,109 | 696 | 2,575 | 0.80% | 0 |
| Christian Democratic Party | PDC | | Democratic Convergence | 709 | 1,238 | 1,563 | 1,196 | 115 | 906 | 656 | 3 | 6,974 | 945 | 8,753 | 10,766 | 33,824 | 10.50% | 1 | 33,824 | 10.50% | 1 |
| Amplitude | AMP | | Sumemos | 852 | 197 | 510 | 432 | 33 | 520 | 120 | 7 | 856 | 109 | 2,884 | 2,957 | 9,477 | 2.94% | 0 | 9,477 | 2.94% | 0 |
| Progressive Party | PRO | | All Over Chile | 161 | 288 | 323 | 507 | 56 | 157 | 146 | 8 | 1,038 | 153 | 3,216 | 2,765 | 8,818 | 2.74% | 0 | 8,818 | 2.74% | 0 |
| Patriotic Union | UPA | | | 98 | 159 | 202 | 408 | 28 | 87 | 91 | 6 | 580 | 87 | 2,082 | 2,303 | 6,131 | 1.90% | 0 | 6,131 | 1.90% | 0 |
| Valid votes | 5,686 | 7,355 | 8,729 | 18,148 | 1,705 | 5,486 | 4,321 | 263 | 33,129 | 5,687 | 107,379 | 124,192 | 322,080 | 100.00% | 8 | 322,080 | 100.00% | 8 |
| Blank votes | 365 | 539 | 949 | 1,362 | 190 | 325 | 338 | 31 | 2,234 | 458 | 6,114 | 6,815 | 19,720 | 5.48% | | | | |
| Rejected votes – other | 275 | 498 | 567 | 1,007 | 84 | 264 | 251 | 13 | 2,242 | 247 | 6,719 | 6,202 | 18,369 | 5.10% | | | | |
| Total polled | 6,326 | 8,392 | 10,245 | 20,517 | 1,979 | 6,075 | 4,910 | 307 | 37,605 | 6,392 | 120,212 | 137,209 | 360,169 | 46.06% | | | | |
| Registered electors | 11,810 | 17,294 | 21,299 | 35,636 | 5,302 | 11,681 | 9,295 | 853 | 77,270 | 10,455 | 285,301 | 295,845 | 782,041 | | | | | |
| Turnout | 53.56% | 48.53% | 48.10% | 57.57% | 37.33% | 52.01% | 52.82% | 35.99% | 48.67% | 61.14% | 42.14% | 46.38% | 46.06% | | | | | |
The following candidates were elected:[12][13]
Jorge Brito (RD), 13,289 votes; Andrés Celis (RN), 21,285 votes; Marcelo Díaz (PS), 15,265 votes; Rodrigo González Torres (PPD), 16,849 votes; María José Hoffmann (UDI), 34,690 votes; Camila Rojas (IGUAL), 14,885 votes; Víctor Torres Jeldes (PDC), 14,942 votes; and Osvaldo Urrutia (UDI), 18,198 votes.