The process included the direct election of mayors and the members of the council of 345 municipalities administering 346 communes,[n 1] the smallest administrative division of the country.

The elected mayors and members of the Municipal Council took office on June 28, 2021, serving an extraordinary term of 3 years, 5 months and 8 days (until December 6, 2024) .

[1] These elections were originally scheduled for 25 October 2020, but the COVID-19 pandemic changed the entire election schedule in Chile, moving the 2020 national plebiscite from 26 April to 25 October.

Finally, the elections were again postponed to 15 and 16 May 2021 due to a rise in the cases of COVID-19.

[1] List of elected mayors in the 16 regional capitals and the communes with more than 150,000 inhabitants.