Voting is on the basis of universal suffrage in a secret ballot. The Valencian Corts 99 members are elected in 3 multi-member districts using the D'Hondt method and a closed-listproportional representation. Each district is entitled to an initial minimum of 20 seats, with the remaining 39 seats being allocated among the 3 provinces in proportion to their populations. Only lists polling above 5% of the total vote in the community (which includes blank ballots—for none of the above) are entitled to enter the seat distribution. That is, a list polling above 5% in a district will not be entitled to enter the seat distribution if it does not reaches the minimum 5% of vote in all of the Valencian Community. Under articles 12 and 68 of the Constitution and article 2 of the Valencian Electoral Law, the minimum voting age is 18.
Under Article 10 of the Valencian Electoral Law, the boundaries of the electoral districts must be the same as the provinces of Spain, which, under Article 141, can only be altered with the approval of the Congress of Deputies.
The apportionment of seats to provinces follows the largest remainder method over the resident population ("Padrón") with a minimum of 20 seats, with the required condition that the number of inhabitans for seat in each district will not exceed 3 times those of other districts.
As per Article 3 and 4 of the Valencian Electoral Law, eligibility on the Valencian parliamentary elections follows the same basic guidelines of the general Spanish Electoral Law, such as the prohibition of dual membership of the Cortes Generales and the regional assemblies, or active judges, magistrates, public defenders, serving military personnel, active police officers, members of constitutional and electoral tribunals and CEOs or equivalent leaders of state monopolies and public bodies also being prohibited from being eligible.
As per Article 30 of the Valencian Electoral Law, the electoral campaign must have a minimum extent of 15 days and a maximum of 21, with the end date being set at the 12:00 a.m. of the day previous to the election.
Poll results are listed in the table below in reverse chronological order, showing the most recent first. The highest percentage figure in each polling survey is displayed in bold, and the background shaded in the leading party's colour. In the instance that there is a tie, then no figure is shaded. The lead column on the right shows the percentage-point difference between the two parties with the highest figures. Poll results use the date the survey's fieldwork was done, as opposed to the date of publication. However, if such date is unknown, the date of publication will be given instead.
Opinion polls showing seat projections are displayed in the table below. The highest seat figures in each polling survey have their background shaded in the leading party's colour. In the instance that there is a tie, then no figure is shaded. 50 seats are required for an absolute majority in the Corts Valencianes.
^ abcdefThis survey shows its poll results projected over candidacy votes (that is, votes going for political parties, excluding blank ballots). The vote percentage in the official election is calculated including blank ballots into the estimation. In order to obtain data comparable to both the official results as well as those of other surveys, a rule of three has been applied to the survey projections, with the results of the calculation being shown instead.