// 10/40 Window — Southeast Asia

INDONESIA

// Quick Facts
GOVERNMENT
Presidential republic
POPULATION
279 million
RELIGION
Majority Muslim (Sunni); minorities include Christian, Hindu, Buddhist
LANGUAGE
Indonesian (Bahasa Indonesia)
CURRENCY
Indonesian Rupiah (IDR)
CLIMATE
Tropical — hot, humid, with distinct rainy and dry seasons
// Overview

THE REALITY
ON THE GROUND

Indonesia is considered one of the most spiritually unreached nations. While Christianity exists as a minority religion, there is an urgent need for Gospel outreach and discipleship across its 17,000+ islands.

Sumatra stands as the largest unsaved island in the world. Its major people groups are predominantly Muslim, which often leads to spiritual opposition. While Christianity has taken root among formerly animist groups like the Batak, Nias, and Mentawai, these groups face unique challenges in reaching their neighbors.

Bali is famous for its surf and tourist scenes, yet it remains a place of significant spiritual darkness with over 49,000 Hindu temples and widespread occult practices. Christian converts in Bali often face heavy persecution.

Across the entire country, there are 233 unreached people groups, representing nearly 70% of the population. Reaching these groups requires intentionality, patience, Bible translation, and creative ministry approaches such as action sports outreach.

ACTION SPORTS

Indonesia's world-class surf breaks — particularly in Bali, Mentawai, and Lombok — draw thousands of international visitors and a growing local surf community. The shared culture of surfing provides unique opportunities for relational evangelism in communities that are otherwise closed to traditional outreach. Skateboarding is also growing in urban centers like Jakarta and Surabaya.

SCRIPTURE

"The harvest is plentiful, but the laborers are few. Therefore pray earnestly to the Lord of the harvest to send out laborers into his harvest."

— Luke 10:2

// Intercession

PRAY WITH
US

Revival within the Church

Pray for spiritual renewal in dry regions and healing from immorality, division, and syncretism with local occult practices.

Equipped Leadership

Pray for strong discipleship and biblical training for leaders to shepherd the rapidly growing newer churches.

Muslim Background Believers

Lift up those facing rejection and persecution, asking for courage, community, and for entire families to follow God.

Bali's Surf Community

Pray for the surf and tourist communities in Bali to encounter the living God amid the spiritual darkness of 49,000 Hindu temples.

Sumatra's Unreached

Pray for breakthrough among Sumatra's predominantly Muslim people groups — the largest unsaved island in the world.

Bible Translation

Pray for the acceleration of Bible translation into the hundreds of minority languages spoken across Indonesia's islands.

// Take Action

JOIN US IN
THE MISSION

The 2026 ACTA Conference in Tagaytay, Philippines is a gathering of action sports missionaries from around the world. Come equipped, go mobilized.