The town and district of Kupiškis were named after the River Kupa, the tributary of the River Levuo. It is a distinctive land in North-Eastern Lithuania as part of Kupiškis residents speaks in dialect of aukstaiciu rotininku and upholds old folklore traditions. The neighbourhood dialects are also characterized by "rotininkavimas” or "puntininkavimas”, but only Kupiškis residents "dadininkauja”. Linguists believe that this peculiarity of dialect has come from the Selonians under the processes of assimilation of the Balts tribes. The district occupies an area of about 1080 square kilometres, which consists the 1.65 percent of the whole territory of the Republic of Lithuania.  The population is 17 097, of which 6145 live in Kupiškis town.