The census of the population in the Kingdom of Bulgaria was held on 31 December 1934.
Ethnic groups
Number and share of ethnic groups. +EthnicityNumbers%Bulgarians5,204,21785.6Turks591,1939.7Roma149,3852.5Jews48,5650.8Armenians25,9630.4Romanians16,5040.3Russians11,9280.2Greeks9,6010.2
Religion Number and share of the population by religion. +ReligionNumbers%Orthodox5,128,89084.3Islam821,29813.5Jews48,3980.7Catholic45,7040.7Armenian Gregorian23,4760.3Protestants8,3710.1Others1,8020.0
Sources