people : 1.3% Germans : 0.5% Romanians : 0.1% Slovaks : 0.5% Ukrainians : 0.1% Other/Undeclared: 4.5% Religious denomination Roman Catholic: 59.4% Greek Catholic: 0.7% Calvinist: 9.3% Lutheran: 3.1% Other denomination: 1.4% Non-religious: 14.4% Undeclared: 11.5% According to the 1910 census, the religious make-up of the town was the following: Roman Catholic: 76.3% Jewish: 11.2% Calvinist: 8.3% Lutheran: 2.8% Other denomination: 1.4% Notable people Géza I, King of Hungary Tibor Gánti, theoretical biologist and biochemist Nat Nichols, componist, jazz pianist and missionary. Twin towns – sister cities Vác is twinned with: Deuil-la-Barre, France Donaueschingen, Germany Dubnica nad Váhom, Slovakia Givatayim, Israel Järvenpää, Finland Odorheiu Secuiesc, Romania Otrokovice, Czech Republic Šahy, Slovakia Sarıyer, Turkey Tiachiv, Ukraine Zawadzkie, Poland Gallery References External links Official website The newsportal Live webcam from the square Map of Vác Map of the surrounding area Tragor Ignác Museum of Vác Katona Lajos Town Library Aerial photographs: Vác Vác at funiq.hu Populated places in Pest County Serb communities in Hungary