Bougainville SEARCH ENGINES - MOTEURS DE RECHERCHE - MOTORES DE BUSQÚEDA - SUCHMASCHINEN BOUGAINVILLE SEARCH! Search Engine Colossus's own Bougainville website directory! (Kamloops, British Columbia, Canada) BOUGAINVILLE Population - 1950: 42,000 - 2000: 175,000 - 2020: 250,000 Gross National Income Per Capita (2019) - 2,370 Euro / 2,780 US Dollars per year Bougainville borders: Solomon Islands and Papua New Guinea