Their comarcal councils bear the name kuadrillako batzarra in Basque or junta de cuadrilla in Spanish (county assembly in English).
They are elected under a mixed system of party-list proportional representation using the D'Hondt method where both the number of votes obtained for each candidacy and the number of city councilors are taken into account.
The plenary session is made up of councilors of each of the city councils of the municipalities that make up the comarca.
The Barcelonès comarcal council was formally abolished in 2019, rendering it the only comarca without one.
Currently and due to its recent inception, it is only scheduled for the Lluçanès comarca to constitute its first comarcal council after the 2027 local elections.