Solid North

The term "Solid South" first emerged after then Davao City mayor Rodrigo Duterte won the presidency with a majority of provinces in Mindanao voting for him.

While Marcos won an even larger mandate during his successful reelection bid in 1969, support from the Solid North was not as crucial in his victory.

[8] Marcos was eventually declared the winner but allegations of massive fraud erupted into the People Power Revolution which drove the Marcoses into exile and concluded with Aquino's ascension into the presidency.

In the vice presidential election, Joseph Estrada won all provinces as running mate of Cojuangco.

Poe narrowly lost to incumbent president Gloria Macapagal Arroyo, but the election would later be tainted by fraud allegations.

"[12] In 2016, Bongbong ran for vice president as the running mate of senator Miriam Defensor Santiago.

[13] In the presidential race, the bloc was not as solid, with some voting for Jejomar Binay, running mate of Estrada in 2010, and Rodrigo Duterte, who has been endorsed by some alongside Marcos,[14] and Grace Poe, daughter of Fernando Poe Jr.[3] In 2022, Bongbong ran for president alongside Sara Duterte as his running mate.

Areas under the Solid North are colored red.
The provinces with at least a plurality of its population being Ilocano people are denoted by green on the map.