| Election | Apruebo Dignidad AD / FA | Green Ecologists PEV | 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 | Votes | % | Seats |
| 2021 | 82,995 | 25.46% | 2 | 15,009 | 4.61% | 0 | 16,353 | 5.02% | 0 | 71,625 | 21.98% | 2 | | | | 62,716 | 19.24% | 1 | 25,031 | 7.68% | 0 | 37,636 | 11.55% | 1 |
| 2017 | 36,661 | 12.09% | 1 | | | | | | | 89,421 | 29.48% | 2 | 22,926 | 7.56% | 0 | 105,579 | 34.81% | 2 | | | | | | |
Results of the 2021 general election held on 21 November 2021:[10][11]
| Party | Pact | Party | Pact |
| Votes per province | Total votes | % | Seats | Votes | % | Seats |
| Maipo | Meli- pilla | Tala- gante |
| Communist Party of Chile | PC | | Apruebo Dignidad | 30,911 | 11,091 | 13,930 | 55,932 | 17.16% | 1 | 82,995 | 25.46% | 2 |
| Comunes | COM | 6,053 | 2,887 | 3,447 | 12,387 | 3.80% | 1 |
| Social Convergence | CS | 5,132 | 1,662 | 2,250 | 9,044 | 2.77% | 0 |
| Democratic Revolution | RD | 2,930 | 1,026 | 1,676 | 5,632 | 1.73% | 0 |
| Socialist Party of Chile | PS | | New Social Pact | 19,958 | 4,978 | 36,843 | 61,779 | 18.96% | 2 | 71,625 | 21.98% | 2 |
| Christian Democratic Party | PDC | 2,986 | 2,331 | 1,870 | 7,187 | 2.21% | 0 |
| Radical Party of Chile | PR | 1,500 | 421 | 738 | 2,659 | 0.82% | 0 |
| Independent Democratic Union | UDI | | Chile Podemos + | 18,824 | 11,352 | 11,491 | 41,667 | 12.78% | 1 | 62,716 | 19.24% | 1 |
| National Renewal | RN | 10,914 | 5,183 | 4,952 | 21,049 | 6.46% | 0 |
| Republican Party | REP | | Christian Social Front | 20,426 | 6,160 | 11,050 | 37,636 | 11.55% | 1 | 37,636 | 11.55% | 1 |
| Party of the People | PDG | | | 13,042 | 3,955 | 8,034 | 25,031 | 7.68% | 0 | 25,031 | 7.68% | 0 |
| Equality Party | IGUAL | | Dignidad Ahora | 6,780 | 1,901 | 5,239 | 13,920 | 4.27% | 0 | 16,353 | 5.02% | 0 |
| Humanist Party | PH | 1,277 | 406 | 750 | 2,433 | 0.75% | 0 |
| Green Ecologist Party | PEV | | | 8,523 | 2,488 | 3,998 | 15,009 | 4.61% | 0 | 15,009 | 4.61% | 0 |
| United Centre | CU | | United Independents | 4,710 | 1,439 | 2,837 | 8,986 | 2.76% | 0 | 8,986 | 2.76% | 0 |
| Progressive Party | PRO | | | 2,802 | 1,064 | 1,704 | 5,570 | 1.71% | 0 | 5,570 | 1.71% | 0 |
| Valid votes | 156,768 | 58,344 | 110,809 | 325,921 | 100.00% | 6 | 325,921 | 100.00% | 6 |
| Blank votes | 9,636 | 4,680 | 5,061 | 19,377 | 5.33% | | | | |
| Rejected votes – other | 9,337 | 3,638 | 5,450 | 18,425 | 5.07% | | | | |
| Total polled | 175,741 | 66,662 | 121,320 | 363,723 | 47.13% | | | | |
| Registered electors | 384,175 | 151,768 | 235,781 | 771,724 | | | | | |
| Turnout | 45.75% | 43.92% | 51.45% | 47.13% | | | | | |
The following candidates were elected:[10][11]
Juan Antonio Coloma (UDI), 34,868 votes; Juan Irarrázaval (REP), 13,248 votes; Raúl Leiva (PS), 40,946 votes; Camila Musante (COM), 12,387 votes; Marisela Santibáñez (PC), 55,932 votes; and Leonardo Soto (PS), 20,833 votes.
Results of the 2017 general election held on 19 November 2017:[12][13]
| Party | Pact | Party | Pact |
| Votes per province | Total votes | % | Seats | Votes | % | Seats |
| Maipo | Meli- pilla | Tala- gante |
| Independent Democratic Union | UDI | | Chile Vamos | 33,144 | 17,200 | 20,480 | 70,824 | 23.35% | 2 | 105,579 | 32.81% | 2 |
| National Renewal | RN | 21,613 | 5,118 | 8,024 | 34,755 | 11.46% | 0 |
| Socialist Party of Chile | PS | | Nueva Mayoría | 23,496 | 5,901 | 40,538 | 69,935 | 23.05% | 2 | 89,421 | 29.48% | 2 |
| Party for Democracy | PPD | 6,946 | 8,312 | 1,053 | 16,311 | 5.38% | 0 |
| Social Democrat Radical Party | PRSD | 2,126 | 517 | 532 | 3,175 | 1.05% | 0 |
| Progressive Party | PRO | | All Over Chile | 27,765 | 6,078 | 10,311 | 44,154 | 14.56% | 1 | 44,154 | 14.56% | 1 |
| Democratic Revolution | RD | | Broad Front | 5,158 | 3,844 | 2,571 | 11,573 | 3.82% | 1 | 36,661 | 12.09% | 1 |
| Equality Party | IGUAL | 4,904 | 1,522 | 3,805 | 10,231 | 3.37% | 0 |
| Humanist Party | PH | 5,114 | 1,094 | 2,332 | 8,540 | 2.82% | 0 |
| Green Ecologist Party | PEV | 3,730 | 904 | 1,683 | 6,317 | 2.08% | 0 |
| Christian Democratic Party | PDC | | Democratic Convergence | 8,250 | 6,860 | 7,816 | 22,926 | 7.56% | 0 | 22,926 | 7.56% | 0 |
| Patriotic Union | UPA | | | 2,432 | 789 | 1,382 | 4,603 | 1.52% | 0 | 4,603 | 1.52% | 0 |
| Valid votes | 144,678 | 58,139 | 100,527 | 303,344 | 100.00% | 6 | 303,344 | 100.00% | 6 |
| Blank votes | 8,016 | 3,651 | 4,756 | 16,423 | 4.89% | | | | |
| Rejected votes – other | 8,800 | 2,735 | 4,759 | 16,294 | 4.85% | | | | |
| Total polled | 161,494 | 64,525 | 110,042 | 336,061 | 47.04% | | | | |
| Registered electors | 358,755 | 141,112 | 214,531 | 714,398 | | | | | |
| Turnout | 45.02% | 45.73% | 51.29% | 47.04% | | | | | |
The following candidates were elected:[12][13]
Jaime Bellolio (UDI), 32,044 votes; Juan Antonio Coloma (UDI), 35,779 votes; Renato Garín (RD), 11,573 votes; Raúl Leiva (PS), 44,774 votes; Marisela Santibáñez (PRO), 35,984 votes; and Leonardo Soto (PS), 22,170 votes.