Positions to be elected are mayors, vice mayors, and councilors. There will be elected 138 city mayors, 138 city vice mayors, 1,532 members of the Sangguniang Panlungsod (city council), 1,496 municipal mayors, 1,496 municipal vice mayors, and 11,972 members of the Sangguniang Bayan (municipal council).
Also included are elections in the Autonomous Region in Muslim Mindanao (ARMM) that were supposed to have been held in 2011 but were postponed and synchronized with the triennial elections. Voters in the ARMM will be electing one regional governor, one regional vice governor and 24 members of the regional assembly.
Each province is headed by a governor and a vice governor. The governor is the chief executive of the province, while the vice governor acts as the governor once the latter is unable to perform his duties, and has the casting vote in the provincial board in case of a tie on a measure, among other powers. While most governors and vice governors run on one ticket, the positions are elected separately, and the winners may come from different tickets.
Each province has a Sangguniang Panlalawigan or provincial board, the legislative body of the province. A province's number of provincial board members depends on its financial standing (generally, the more populous provinces are richer), with the richest provinces having up to 14 board members. In addition, the provincial board has a seat reserved for the president of the provincial chapter of the League of Councilors which are indirectly elected from the city and municipal levels, and two more seats reserved for the provincial presidents of the provincial chapters of the Association of Barangay (village) Captains (ABC) and of the Sangguniang Kabataan (SK; youth councils). These ex officio members from the ABC and SK are indirectly elected from the barangay level, which were elected by the people in 2010; an election later in the year may change the membership of those two ex officio members.
The executive and legislative branches of cities are modeled after provinces, with a mayor, vice mayor and a city council made up of councilors. The city council has up to 36 regular members elected via plurality-at-large voting. Some cities are divided into councilor districts; if a city is divided into two or more congressional districts, the councilor districts would be coextensive with these. Some cities aren't divided into councilor districts; in cases such as this, the entire membership is elected at-large, with the city as one "district". Aside from these regular members, city councils also have three ex officio members composed of the president of the barangay chapters of the Association of Barangay (village) Captains (ABC) and of the Sangguniang Kabataan (SK; youth councils). These ex officio members are indirectly elected from the barangay level, which were elected by the people in 2010; an election later in the year may change the membership of those two ex officio members.
In the results tables above, in cases when a candidate ran under two parties, a national party and a local party, the seat is credited to the national party. Therefore, all seats won by local parties here refer to parties that did not include a name of a national party on the ballot.
For the 14 April weekend, Catholic Bishops Conference of the Philippines' Vice President Archbishop Socrates Villegas instructed priests to tell their flock during mass "not to vote for the candidate if the candidate cannot declare a categorical and clear 'no' to divorce, abortion, euthanasia, total birth control and homosexual marriages or death issues." This was seen as a setback for President Benigno Aquino's allies who had passed a birth control law the previous year.