Moldovan language
35,808 or 54.53% of ethnic Bulgarians declared Bulgarian language as first language in daily use (36.81% in urban areas, and 68.95% in rural ones), 5,698 or 8.68% of them declared Moldovan language/Romanian language as first (7.93% in urban areas, and 9.29% in rural ones), 23,259 or 35.42% of them declared Russian language as first (54.45% in urban areas, and 19.95% in rural ones), and 897 or 1.37% of them declared another first language (0.81% in urban areas, and 1.81% in rural ones).