Christian Church of Sumba is

Calvinist Calvinism (also called the Reformed Tradition, Reformed Protestantism, Reformed Christianity, or simply Reformed) is a major branch of Protestantism that follows the theological tradition and forms of Christian practice set down by John Ca ...

church in

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

, a member of

World Communion of Reformed Churches The World Communion of Reformed Churches (WCRC) is the largest association of Calvinist churches in the world. It has 230 member denominations in 108 countries, together claiming an estimated 80 million people, thus being the fourth-largest Chris ...

. The denomination was established on 15 January 1947. Today, the church has congregations in various cities outside the island of

Sumba Sumba ( id, Pulau Sumba) is an island in eastern Indonesia. It is one of the Lesser Sunda Islands and is in the province of East Nusa Tenggara. Sumba has an area of , and the population was 779,049 at the 2020 Census; the official estimate as a ...

. :id:Gereja Kristen Sumba There are churches in

Flores Flores is one of the Lesser Sunda Islands, a group of islands in the eastern half of Indonesia. Including the Komodo Islands off its west coast (but excluding the Solor Archipelago to the east of Flores), the land area is 15,530.58 km2, and th ...

, Rote-Ndao,

Kupang Kupang ( id, Kota Kupang, ), formerly known as Koepang, is the capital of the Indonesian province of East Nusa Tenggara. At the 2020 C ensus, it had a population of 442,758; the official estimate as at mid 2021 was 455,850. It is the largest ci ...

Timor Timor is an island at the southern end of Maritime Southeast Asia, in the north of the Timor Sea. The island is East Timor–Indonesia border, divided between the sovereign states of East Timor on the eastern part and Indonesia on the western p ...

Bali Bali () is a province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller neighbouring islands, notably Nusa Penida, Nusa Lembongan, and Nu ...

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...

. It has 550,000 members, the majority of the

Christian Christians () are people who follow or adhere to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. The words ''Christ'' and ''Christian'' derive from the Koine Greek title ''Christós'' (Χρι ...

population in

in 2004. The church has been growing steadily.www.pcimissionoverseas.org/partners/item/12/christian-church-of-sumba-gks/
/ref> In 2012, the church had approximately 600,000 members and 712 congregations. In 1907,

Dutch Reformed The Dutch Reformed Church (, abbreviated NHK) was the largest Christian denomination in the Netherlands from the onset of the Protestant Reformation in the 16th century until 1930. It was the original denomination of the Dutch Royal Family an ...

started the mission in Sumba and they founded a number of congregations. By the 1940s, there were 5,000 Christians in Sumba. The official founding date is 1947. The church adheres to the

Heidelberg Catechism The Heidelberg Catechism (1563), one of the Three Forms of Unity, is a Protestant confessional document taking the form of a series of questions and answers, for use in teaching Calvinist Christian doctrine. It was published in 1563 in Heidelberg, ...

References

1947 establishments in the Dutch East Indies Calvinist denominations established in the 20th century Members of the World Communion of Reformed Churches Reformed denominations in Indonesia Christian organizations established in 1949 Sumba {{Indonesia-stub