For all cities with a population greater than five hundred thousand, Sfax is closest to Tunis and farthest from Auckland. The closest foreign city is Tripoli and the farthest domestic city is Tunis. See below for the top 5 closest and farthest cities (domestically, internationally and by continent) and to see which cities, if any, Sfax is the closest and farthest to. Filter to include all cities over 100k, 500k or 1 million in population.