Celebrations
- 1959.06.11: Established as Apostolic Vicariate of Western Solomon Islands (English) (from Apostolic Vicariate of Northern Solomon Islands and Apostolic Vicariate of South Solomons)
- 1966.11.15: Promoted as Diocese of Gizo / Ghizotan(us) (Latin) (became suffragan of Rabaul)
- 1978.11.15: Became suffragan of Honiara
Statistics (2022.12.31)
Area: 8,573 km²
Population: 17,605 Catholics (11.4% of 154,900 total)
Pastoral Centres: 8 parishes, 2 missions
Personnel: 15 priests (7 diocesan, 8 religious), 29 religious (10 brothers, 19 sisters), 10 seminarians
