According to the 2001 census, Russian is the main language of 74.9% of residents in Donetsk Oblast and 68.8% in Luhansk Oblast.<ref>{{cite web|url=http://2001.ukrcensus.gov.ua/eng/results/general/language/|title=Всеукраїнський перепис населення 2001 – English version – Results – General results of the census –& Linguistic composition of the population|website=2001.ukrcensus.gov.ua}}</ref>
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According to the 2001 census, Russian is the main language of 74.9% of residents in Donetsk Oblast and 68.8% in Luhansk Oblast.<ref>{{cite web|url=http://2001.ukrcensus.gov.ua/eng/results/general/language/|title=Всеукраїнський перепис населення 2001 – English version – Results – General results of the census –& Linguistic composition of the population|website=2001.ukrcensus.gov.ua}}</ref> About 6% are [[Muslim]].