 Tagalogs dominate the National Capital Region, Calabarzon and the island provinces of Marinduque and Mindoro, while Bicolanos populate the southern Bicol peninsula.Visayans mainly predominate in the island provinces of Masbate, Palawan and Romblon.Other ethnic groups lesser in population include the Aetas of Zambales and Bataan, the Ibanags of Cagayan and Isabela, along with smaller groups like the Gaddang of Nueva Vizcaya, and the Igorot/Cordillerans of the Cordilleras.