Ethnic map of the county (with data of the 1910 census). Key: red - Hungarians; light green - Slovaks; pink - Germans; black - Roma; orange - Polish; violet - Ruthenians. Coloured dots in plain rectangles imply the presence of smaller minority populations (generally more than 100 people or 10%). Multicoloured rectangles imply cities and villages with multi-ethnic populations with the order of the stripes following the ethnic composition of the settlement. (One obvious mistake in the census data was corrected in case of the village of Derenk which was Polish rather than Hungarian.)
<a href="//commons.wikimedia.org/wiki/User:Zello" title="User:Zello">Zello</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>