Today, the church has congregations in various cities outside the island of Sumba.
[2] There are churches in Sumba, Flores, Rote-Ndao, Kupang, Timor, Bali, Java, Sulawesi.
[3] It has 550,000 members, the majority of the Christian population in Sumba in 2004.
[2] In 1907, Dutch Reformed started the mission in Sumba and they founded a number of congregations.
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