Hungary recognises two sizeable minority groups, designated as "national minorities" because their ancestors have lived in their respective regions for centuries in Hungary: a German community of about 130,000 that lives throughout the country, and a Romani minority numerous around 300,000 that mainly resides in the northern part of the country. Some studies indicate a considerably larger number of Romani in Hungary (876,000 people – c. 9% of the population.). According to the 2011 census, there were 8,314,029 (83.7%) ethnic Hungarians, 308,957 (3.1%) Romani, 131,951 (1.3%) Germans, 29,647 (0.3%) Slovaks, 26,345 (0.3%) Romanians, and 23,561 (0.2%) Croats in Hungary; 1,455,883 people (14.7% of the total population) did not declare their ethnicity. Thus, Hungarians made up more than 90% of people who declared their ethnicity. In Hungary, people can declare more than one ethnicity, so the sum of ethnicities is higher than the total population.