*Today part of Maguindanao but also considered as part of Cotabato province. **Today an integral part of Maguindanao. | leader_party = | leader_title = Governor | leader_name = Emmylou J. Taliño-Mendoza (Liberal) | leader_title1 = Vice Governor | leader_name1 = Gregorio T. Ipong (Independent) | area_footnotes = | area_total_km2 = 9008.90 | area_r...