title: Ōtsu District, Yamaguchi
text: # Ōtsu District, Yamaguchi
  
  Ōtsu (大津郡, Ōtsu-gun) was a district located in Yamaguchi Prefecture, Japan.
  
  As of 2003, the district had an estimated population of 18,761. The total area was 205.49 $km^2.$
  
  Until March 21, 2005, the district had three towns.
  
  * Heki
  * Misumi
  * Yuya
  
  On March 22, 2005, the towns of Heki, Misumi and Yuya were merged into the expanded city of Nagato. Ōtsu District was dissolved as a result of this merger.
  
  ## History
  
  ### Timeline
  
  * 1889 - Due to the municipal status enforcement, the villages of Senzakitōri, Fukagawa, Misumi, Tawarayama, 菱海, Utsuga, Mutsugu and Heki. (8 villages)
  * April 1, 1899 - A part of the village of Senzakitōri was renamed to become the village of Tōri; and the remaining part of Senzakitōri was renamed to become the village of Senzaki. (9 villages)
  * April 15, 1914 - The village of Senzaki was elevated to town status. (1 town, 8 villages)
  * November 1, 1928 - The village of Fukagawa was elevated to town status. (2 towns, 7 villages)
  * November 3, 1942 - The village of Misumi was elevated to town status. (3 towns, 6 villages)
  * March 31, 1954 - The towns of Senzaki and Fukagawa, and the villages of Tōri and Tawarayama were merged to create the city of Nagato. (1 town, 4 villages)
  * May 1, 1954 - The villages of 菱海村, Utsuga, Mutsugu and a part of Heki were merged to create the town of Yuya. (2 towns, 1 village)
  * April 1, 1978 - The village of Heki (remaining parts) was elevated to town status. (3 towns)
  * March 22, 2005 - The towns of Heki, Misumi and Yuya were merged into the expanded city of Nagato. Ōtsu District was dissolved as a result of this merger.
  