Major Christian Churches in Papua New Guinea: Four Denominations Dominate
Christianity is professed by ~95% of Papua New Guinea's 9M+ people. Four denominations account for the vast majority, each with distinct geographic and cultural strongholds.
1. Roman Catholic Church — Largest (2.6M+)
- Structure: 4 Archdioceses (Port Moresby, Madang, Mount Hagen, Rabaul) + 14 Dioceses
- Leadership: Archbishop of Port Moresby (metropolitan)
- Strongholds: Highlands (Simbu, Eastern, Western, Jiwaka), Islands (East/West New Britain, Bougainville), urban centers
- Services: 600+ schools, 150+ health facilities, universities (Divine Word, Pacific Adventist)
2. Evangelical Lutheran Church of PNG (ELCPNG) — ~1M+
- Structure: 17 Districts, 300+ parishes. Roots: Neuendettelsau (German) & American Lutheran missions (1886+)
- Leadership: Bishop (elected), Head Bishop (archbishop-equivalent)
- Strongholds: Morobe (Lae), Madang, Highlands (Eastern, Western, Jiwaka). German mission legacy.
- Partners: Gutnius Lutheran Church (Wycliffe/SIL), Lutheran Church of Australia
3. United Church in PNG — ~800K+
- Formation: 1968 merger: London Missionary Society (Congregational) + Methodist + Presbyterian (minor)
- Structure: 4 Regions (Highlands, Momase, Papuan, Islands) → Districts → Circuits → Local Churches
- Leadership: Moderator (elected), General Secretary
- Strongholds: Papuan coast (Central, Gulf, Milne Bay), Highlands (Southern, Hela), Islands (New Ireland, Manus)
- Legacy: Early literacy, vernacular translation, women's fellowship (strong)
4. Anglican Church of PNG — ~500K+
- Origins: 1877 (Australian Board of Mission). Anglo-Catholic tradition.
- Structure: 5 Dioceses: Port Moresby (archbishop), Dogura (Milne Bay), Popondetta (Oro), Aipo Rongo (Highlands), New Guinea Islands (New Britain, New Ireland)
- Strongholds: Oro (Popondetta), Milne Bay (Dogura), Highlands (Aipo Rongo), urban parishes
- Distinctive: Strong monastic orders (Melanesian Brotherhood, Sisters of the Church, Community of the Redeemer)
Other Significant Groups
- Seventh-day Adventist: ~300K (high growth, health/education focus)
- Baptist Union: ~150K
- Assemblies of God / Pentecostals: Rapid growth, esp. urban/youth
- Kukua (indigenous): Cargo-cult origins, now Christianized
Ecumenism
PNG Council of Churches (1965) coordinates social work, HIV/AIDS, gender violence, disaster relief, Bible translation (800+ languages).