The Chiayi plan covers the coastal area west of Provincial Highway 19 between the Beigang River to the north and the Bazhang River to the south, a total of 250 square kilometers (25,000 hectares).
翻開地圖，嘉義沿海地區從北港溪以南到八掌溪以北，東起台 19 線、西至海岸線，共 250 平方公里（2 萬 5,000 公頃），是整個嘉義計畫範圍。