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