Administrative divisions: | 28 provinces (oblasti, singular - oblast): Blagoevgrad, Burgas, Dobrich, Gabrovo, Khaskovo, Kurdzhali, Kyustendil, Lovech, Montana, Pazardzhik, Pernik, Pleven, Plovdiv, Razgrad, Ruse, Shumen, Silistra, Sliven, Smolyan, Sofiya, Sofiya-Grad, Stara Zagora, Turgovishte, Varna, Veliko Turnovo, Vidin, Vratsa, and Yambol.
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Borders with neighbor countries: | Greece 494 km, Macedonia 148 km, Romania 608 km, Serbia 371 km, Turkey 240 km
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