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In page Békéscsaba:

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According to the 2011 census there were 51,842 (83.5%) Hungarians, 1,881 (3%) Slovaks, 402 (0.6%) Roma, 293 (0.5%) Romanians and 170 (0.3%) Germans in Békéscsaba. 9,666 people (15.6%) did not declare their ethnicity.[1] In Hungary people can declare more than one ethnicity, so other people declared Hungarian and a minority one together.[2]