Usa (宇佐郡, Usa-gun) was a district located in Ōita Prefecture, Japan.

As of 2003, the district had an estimated population of 12,739 and the density of 48.85 persons per km2. The total area was 260.79 km2.

Until March 30, 2005, the district had two towns:

Merger

edit

On March 31, 2005 - the towns of Ajimu and Innai were merged into the expanded city of Usa.[1] Therefore, Usa District was dissolved as a result of this merger.

References

edit
  1. ^ "総務省|令和2年版 地方財政白書|資料編 〔附属資料〕 昭和60年度以降の市町村合併の実績" [Record of Municipal Mergers Since Showa 60]. 総務省 (in Japanese). Retrieved 2024-02-28.