The built up area of Gambella town is 1722.75 ha and it is a circle shaped town. Its altitude is 550m above sea level; its mean annual temperature is 28.3 ºC; and mean annual rainfall is 1036.9 mm and the prevailing wind direction are south east and south. The principal natural constraint for the physical expansion of the town is the existence of swampy areas and the manmade constraints are high tension lines.