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