Usa District, Ōita Explained

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:

• Ajimu
• Innai

Merger

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

1. Web site: 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 . 2024-02-28 . 総務省 . ja.