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The Reformed Church in Romania (Hungarian: Romániai Református Egyház; Romanian: Biserica Reformată din România) is the organization of the Calvinist church in Romania.The majority of its followers are of Hungarian ethnicity and Hungarian is the main church language. The large majority of the Church's parishes are in Transylvania; according to the 2002 census, 701,077 people or 3.15% of the total population belong to the Reformed Church. About 95% of the members were of Hungarian ethnicity.