Chakavian
Chakavian in its actual use is the least spoken Serbo-Croatian dialect, being spoken only by 12% Croats. It is now mostly reduced in southwestern Croatia along the eastern Adriatic: Adriatic islands, and sporadically in the mainland coast, with rare inland enclaves up to central Croatia, and minor enclaves in Austria and Montenegro. All areas of old contacts with Romance languages.
Serbs of Croatia
Although 2011 census puts Serbs as the largest national minority in Croatia with 4.4% of the total population, the number of people who had declared Serbian language as their native is 52,879 (1.23% of the total population).