As of 2003, the district had an estimated population of 46,231 and a density of 320.63 persons per km2. The total area was 144.19 square kilometres (55.67 sq mi).
On October 1, 2004 - the towns of Kamojima, Kawashima and Yamakawa, and the village of Misato were merged to create the city of Yoshinogawa.[1][2] Therefore, Oe District was dissolved as a result of this merger.
References
^"人口減対策 待ったなし". 読売新聞オンライン (in Japanese). 2023-10-12. Retrieved 2024-02-04. [吉野川市]は04年10月、旧麻植郡の鴨島、川島、山川各町と美郷村の4自治体が合併し発足した。