Montenegro Business Directory: MNE is the ISO 3 alphabet country code of Montenegro. Currency of Montenegro is €, which has a short code of EUR. Capital of Montenegro is Podgorica. Montenegro has the population of 629219 and approximate area is 13812.00 square kilometers (or approx. 8582.7768 square miles). Population density of Montenegro is approx. 45/Km2 (or approx. 27.963/mile2)