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7,107 but global warming will reduce that by more than half. But, there are only 1,000 inhabited islands. By the way PI has 97 ethnic groups and 101 dialects. The Island are grouped due to Spains influence, and as such are not a single archipeligo, but components of several. For example Palawan belongs to Borneo archipeligo, and Jolo belongs to Burenei land mass. For a whle PI included Taiwan (Taipei).