The region may also include the islands of Romblon and Masbate, whose population identify as Visayan. There are four administrative regions in the Visayas: Western Visayas (4.7 million), Negros Island Region (3.6 million), Central Visayas (pop. 6.8 million), and Eastern Visayas (4.1 million).he early people in the Visayas region were Austronesians and Negritos who migrated to the islands about 6,000 to 30,000 years ago. These early settlers were animist tribal groups.