The main areas affected by land subsidence run down the western coastal plain from Changhua through Chia-yi, Yunlin and Tainan to Pingtung. Fish farming is prevalent in these counties, and ponds dot the entire area. The excessive pumping of ground water by these fish farmers is so severe that the elevation of towns and village in the area is dropping. This creates problems with drainage leading to frequent flooding.
台灣地層下陷的主要區域是從彰化、雲林、嘉義、台南一直到屏東的台灣西部沿海地區，這些地方因養殖漁業興盛，漁塭處處，超抽地下水的情形十分嚴重，造成村莊部落標高降低，排水不良，極易淹水，有些地區甚至因受到海水漲退潮的影響，長期泡在水中。