Tunisia Business Directory: TUN is the ISO 3 alphabet country code of Tunisia. Currency of Tunisia is DT, which has a short code of TND. Capital of Tunisia is Tunis. Tunisia has the population of 11659174 and approximate area is 163610.00 square kilometers (or approx. 101667.254 square miles). Population density of Tunisia is approx. 71/Km2 (or approx. 44.1194/mile2)