ierz ë , ▁Le k bib aj , ▁L l ug aj , ▁Marg eg aj ▁and ▁Tro po j ë , ▁that ▁became ▁municipal ▁units . ▁The ▁seat ▁of ▁the ▁municipality ▁is ▁the ▁town ▁B aj ram ▁Cur ri . ▁The ▁total ▁population ▁is ▁ 2 0 , 5 1 7 ▁( 2 0 1 1 ▁census ), ▁in ▁a ▁total ▁area ▁of ▁ 1 0 5 8 . 0 4   km 2 . ▁The ▁population ▁of ▁the ▁former ▁municipality ▁at ▁the ▁ 2 0 1 1 ▁census ▁was ▁ 4 , 1 1 7 . ▁The ▁non - n avig able ▁Val bon ë ▁River ▁flows ▁through ▁the ▁municipality . ▁ ▁Et ym ology ▁Tro po j ë ' s ▁old ▁name ▁was ▁Tre b opol je ▁and ▁is ▁recorded ▁in ▁Ser bian ▁and ▁Ott oman ▁medieval ▁char ters ▁and ▁registers . ▁The ▁word ▁itself ▁comes ▁from ▁the ▁old ▁S lav ic ▁tre bit i , ▁‘ to ▁clean ’ , ▁and ▁pol je , ▁‘ field ’ , ▁i . ▁e . ▁‘ clean ▁field ’ . ▁ ▁History ▁Arch ae ological ▁evidence ▁found ▁in ▁the ▁area , ▁such ▁as ▁cast les ▁or ▁tum uli ▁show ▁that ▁the ▁area ▁was ▁populated ▁since ▁the ▁ancient ▁time . ▁The ▁region ▁lies ▁in ▁the ▁ge ographical ▁span ▁of ▁the ▁D ard an ii ▁tribes . ▁ ▁Tro po j ë ▁is ▁a ▁county ▁with ▁its ▁regional ▁center ▁being ▁Kol ge ca j ▁( today ' s ▁B aj ram ▁Cur ri ).