Mergers from April 1, 1999 to Present

• On October 1, 2001 - the town of Rittō
  Ritto, Shiga
  is a city located in Shiga, Japan. It is well-known for Japanese horse racing fans because there is the Japan Racing Association's training center and a famous jockey brothers, Yutaka Take and Koshiro Take, were born in Ritto....
  
  was from Kurita District
  Kurita District, Shiga
  Kurita was a district located in Shiga, Japan.The district was dissolved on October 1, 2001 when Rittō Town change Rittō City. Historically, Kusatsu City belonged to Kurita District, too....
  
   was promoted to city status. Kurita District
  Kurita District, Shiga
  Kurita was a district located in Shiga, Japan.The district was dissolved on October 1, 2001 when Rittō Town change Rittō City. Historically, Kusatsu City belonged to Kurita District, too....
  
   was dissolved with this change in status.

• On October 1, 2004 - the towns of Chūzu
  Chuzu, Shiga
  was a town located in Yasu District, Shiga, Japan.On October 1, 2004 Chūzu was merged with the former town of Yasu, also from Yasu District, to form the new city of Yasu....
  
   and Yasu
  Yasu, Shiga
  is a city located in Shiga Prefecture, Japan. The city was formed on October 1, 2004, by the merger of the towns of Yasu and Chūzu; in doing so, the former Yasu District was dissolved....
  
   merged to form the city of Yasu
  Yasu, Shiga
  is a city located in Shiga Prefecture, Japan. The city was formed on October 1, 2004, by the merger of the towns of Yasu and Chūzu; in doing so, the former Yasu District was dissolved....
  
  . Yasu District
  Yasu District, Shiga
  Yasu was a district located in Shiga, Japan. The district was dissolved when Chūzu and Yasu towns merged on Oct. 1, 2004, effectively turning Yasu District into Yasu City....
  
   was thereby dissolved.

• On October 1, 2004 - the towns of Kōsei
  Kosei, Shiga
  was a town located in Kōka District, Shiga, Japan. "Kōsei" means "western Kōka".On October 1, 2004 Kōsei was merged with the town of Ishibe, also from Kōka District, to form the new city of Konan....
  
   and Ishibe
  Ishibe, Shiga
  was a town located in Kōka District, Shiga, Japan. There was Ishibe-juku in Edo period.On October 1, 2004 Ishibe was merged with the town of Kōsei, also from Kōka District, to form the new city of Konan....
  
   merged to form the city of Konan
  Konan, Shiga
  is a city located in the southern part of Shiga, Japan. The city was founded on October 1, 2004 by the merger of the towns of Kōsei and Ishibe, both from Kōka District. The total area is 70.49 km²....
  
  .

• On October 1, 2004 - the towns of Kōka
  Koka, Shiga (town)
  was a town located in Kōka District, Shiga, Japan.As of 2004, the town had an estimated population of 11,630 and a density of 161.89 persons per km². The total area was 49.3 km²....
  
  , Minakuchi
  Minakuchi, Shiga
  was a town located in Kōka District, Shiga, Japan. In Edo period, it developed as a post town of Tokaido and a castle town for Minakuchi Castle....
  
  , Shigaraki
  Shigaraki, Shiga
  was a town located in Kōka District, Shiga, Japan.On October 1, 2004 Shigaraki was merged with the towns of Kōka, Kōnan, Minakuchi and Tsuchiyama, all from Kōka District, to form the new city of Kōka....
  
  , Tsuchiyama
  Tsuchiyama, Shiga
  was a town located in Kōka District, Shiga, Japan.On October 1, 2004 Tsuchiyama was merged with the towns of Kōka, Kōnan, Minakuchi and Shigaraki, all from Kōka District, to form the new city of Kōka....
  
  , and Kōnan
  Konan, Shiga
  is a city located in the southern part of Shiga, Japan. The city was founded on October 1, 2004 by the merger of the towns of Kōsei and Ishibe, both from Kōka District. The total area is 70.49 km²....
  
   merged to form the city of Kōka
  Koka, Shiga
  is a city located in the southern part of Shiga Prefecture, Japan....
  
  . Kōka District
  Koka District, Shiga
  was a district located in Shiga Prefecture, Japan.As of 2003, the district had an estimated population of 147,928 and a density of 267.90 persons per km²...
  
   was thereby dissolved.

• On January 1, 2005 - all five towns and one village in the former Takashima District
  Takashima District, Shiga
  Takashima was a district located in Shiga, Japan.In 2003, the district had an estimated population of 55,348 and a density of 108.24 persons per km²...
  
   comprising Adogawa
  Adogawa, Shiga
  was a town located in the former Takashima District, Shiga, Japan.As of 2003, the town had an estimated population of 14,245 and a density of 293.89 persons per km²...
  
  , Imazu
  Imazu, Shiga
  was a town located in former Takashima District, Shiga, Japan. It was the center of the district.As of 2003, the town had an estimated population of 14,018 and a density of 114.21 persons per km²...
  
  , Shin'asahi, Makino
  Makino, Shiga
  was a town located in former Takashima District, Shiga, Japan.In 2003, the town had an estimated population of 6,230 and a density of 79.53 per km². The total area was 78.34 km²....
  
  , and Takashima
  Takashima, Shiga (town)
  was a town located in former Takashima District, Shiga, Japan. In Edo period, Ōmizo Domain based here.On December 1, 2004, the town had an estimated population of 7,086 and a density of 112.12 persons per square kilometre...
  
   towns and Kutsuki
  Kutsuki, Shiga
  was a village located in the former Takashima District, Shiga, Japan.As of 2003, the village had an estimated population of 2,546 and a density of 15.36 persons per km². The total area was 165.77 km²....
  
   village merged to form the city of Takashima
  Takashima, Shiga
  is a city in Shiga Prefecture, Japan.On November 30, 2004 the city had an estimated population of 56,220 and a density of 110 persons per square kilometres. The total area is 511 square kilometres....
  
  . Takashima District
  Takashima District, Shiga
  Takashima was a district located in Shiga, Japan.In 2003, the district had an estimated population of 55,348 and a density of 108.24 persons per km²...
  
   was thereby dissolved. Also there are no more villages left in the Shiga Prefecture with this creation.

• On February 11, 2005 - the city of Yōkaichi
  Yokaichi, Shiga
  was a city located in Shiga, Japan.On February 11, 2005 Yōkaichi was merged with the towns of Eigenji and Gokashō, both from Kanzaki District, and the towns of Aitō and Kotō, both from Echi District, to form the new city of Higashiōmi....
  
   and the towns of Eigenji
  Eigenji, Shiga
  was a town located in Kanzaki District, Shiga, Japan. It is located at the western foot of Suzuka Mountains.On February 11, 2005 Eigenji was merged with the town of Gokashō, also from Kanzaki District, the towns of Aitō and Kotō, both from Echi District, and the old city of Yōkaichi, to form the...
  
  , Gokashō
  Gokasho, Shiga
  was a town located in Kanzaki District, Shiga, Japan.On February 11, 2005 Gokashō was merged with the town of Eigenji, also from Kanzaki District, the towns of Aitō and Kotō, both from Echi District, and the old city of Yōkaichi, to form the new city of Higashiōmi.In 2003, the town had an estimated...
  
  , Aitō
  Aito, Shiga
  was a town located in Echi District, Shiga, Japan. "Aitō" means "eastern Echi".On February 11, 2005 Aitō was merged with the towns of Eigenji and Gokashō, both from Kanzaki District, the town of Kotō, also from Echi District, and the old city of Yōkaichi, to form the new city of Higashiōmi.In 2003,...
  
  , and Kotō
  Koto, Shiga
  was a town located in Echi District, Shiga, Japan. "Kotō" means "east of Lake Biwa".On February 11, 2005 Kotō was merged with the towns of Eigenji and Gokashō, both from Kanzaki District, the town of Aitō, also from Echi District, and the old city of Yōkaichi, to form the new city of Higashiōmi.In...
  
   merged to form the city of Higashiōmi
  Higashiomi, Shiga
  is a city located in Shiga Prefecture, Japan.As of 2008, the city has an estimated population of 117,557 and the density of 303 persons per km². The total area is 388.58 km²....
  
  . Yokaichi and the four towns were thereby dissolved.

• On February 14, 2005 - the towns of Maihara
  Maihara, Shiga
  was a town located in Sakata District, Shiga, Japan.On February 14, 2005 Maihara was merged with the towns of Ibuki and Santō, all from Sakata District, to form the new city of Maibara....
  
  , Santō
  Santo, Shiga
  was a town located in Sakata District, Shiga, Japan. There was Kashiwabara-juku in Edo period.On February 14, 2005 Santō was merged with the towns of Maihara and Ibuki, all from Sakata District, to form the new city of Maibara....
  
  , and Ibuki
  Ibuki, Shiga
  was a town located in Sakata District, Shiga, Japan. Mount Ibuki dominates the town.On February 14, 2005 Ibuki was merged with the towns of Maihara and Santō, all from Sakata District, to form the new city of Maibara....
  
   in Sakata District
  Sakata District, Shiga
  Sakata was a district located in Shiga, Japan. The district is currently dissolved.As of 2003, the district has an estimated population of 41,126 and a density of 184.34 persons per km². The total area is 223.10 km²....
  
   merged to form the city of Maibara
  Maibara, Shiga
  is a city located in Shiga Prefecture, Japan.As of August 1, 2006, the city has an estimated population of 42,154. The total area is 223.1 km².- History :...
  
  .

• On October 1, 2005 - the town of Ōmi
  Omi, Shiga
  was a town located in Sakata District, Shiga, Japan.On October 1, 2005 Ōmi was merged into the expanded city of Maibara.As of 2003, the town had an estimated population of 9,663 and a density of 535.64 persons per km². The total area was 18.04 km²....
  
   from Sakata District
  Sakata District, Shiga
  Sakata was a district located in Shiga, Japan. The district is currently dissolved.As of 2003, the district has an estimated population of 41,126 and a density of 184.34 persons per km². The total area is 223.10 km²....
  
   merged into the city of Maibara
  Maibara, Shiga
  is a city located in Shiga Prefecture, Japan.As of August 1, 2006, the city has an estimated population of 42,154. The total area is 223.1 km².- History :...
  
  . Sakata District
  Sakata District, Shiga
  Sakata was a district located in Shiga, Japan. The district is currently dissolved.As of 2003, the district has an estimated population of 41,126 and a density of 184.34 persons per km². The total area is 223.10 km²....
  
   was dissolved as a result of this merger.

• On January 1, 2006 - the town of Notogawa
  Notogawa, Shiga
  was a town located in Kanzaki District, Shiga, Japan. It touches the Lake Biwa on the northeast.On January 1, 2006 Notogawa, along with the town of Gamō, from Gamō District, was merged into the expanded city of Higashiōmi....
  
   from Kanzaki District
  Kanzaki District, Shiga
  Kanzaki was a district located in Shiga, Japan.As of 2003, the district had an estimated population of 41,048 and a density of 179.51 persons per km²...
  
   and the town of Gamō
  Gamo, Shiga
  was a town located in Gamō District, Shiga, Japan.On January 1, 2006 Gamō, along with the town of Notogawa, from Kanzaki District, was merged into the expanded city of Higashiōmi....
  
   from Gamō District
  Gamo District, Shiga
  is a district located in Shiga, Japan.As of September 1, 2011, the district has an estimated population of 35,629 and a density of 220 persons per km²...
  
   merged into the city of Higashiōmi
  Higashiomi, Shiga
  is a city located in Shiga Prefecture, Japan.As of 2008, the city has an estimated population of 117,557 and the density of 303 persons per km². The total area is 388.58 km²....
  
  . Kanzaki District
  Kanzaki District, Shiga
  Kanzaki was a district located in Shiga, Japan.As of 2003, the district had an estimated population of 41,048 and a density of 179.51 persons per km²...
  
   was dissolved as a result of this merger.

• On February 13, 2006 - the city of Nagahama
  Nagahama, Shiga
  is a city located in Shiga Prefecture, Japan on the eastern shore of Lake Biwa. The city center was developed and renamed by Toyotomi Hideyoshi when Hideyoshi moved his center of administration from Odani Castle...
  
   and the towns of Azai
  Azai, Shiga
  was a town located in Higashiazai District, Shiga Prefecture, Japan. In Sengoku period, Azai clan based here and Battle of Anegawa broke out.As of 2003, the town had an estimated population of 13,055 and a density of 149.90 persons per km²...
  
   and Biwa
  Biwa, Shiga
  was a town located in Higashiazai District, Shiga Prefecture, Japan. It is on the northern shore of Lake Biwa and that was the origin of the town's name. Chikubu Island was under the administration of Biwa....
  
   from Higashiazai District
  Higashiazai District, Shiga
  was a district located in Shiga Prefecture, Japan.From the reports of 2005 Census, the district had an estimated population of 14,509. The total area was 38.53km².-Timeline:*April 1, 1971 - The village of Biwa gained town status....
  
   merged to form the city of Nagahama
  Nagahama, Shiga
  is a city located in Shiga Prefecture, Japan on the eastern shore of Lake Biwa. The city center was developed and renamed by Toyotomi Hideyoshi when Hideyoshi moved his center of administration from Odani Castle...
  
  .

• On February 26, 2006 - the municipalities of Echigawa
  Echigawa, Shiga
  was a town located in Echi District, Shiga, Japan. It developed as Echigawa-juku in Edo period.On February 13, 2006 Echigawa was merged with the town of Hatashō, also from Echi District, to form the new town of Aishō....
  
   and Hatashō
  Hatasho, Shiga
  was a town located in Echi District, Shiga, Japan.On February 13, 2006 Hatashō was merged with the town of Echigawa, also from Echi District, to form the new town of Aishō....
  
   from Echi District
  Echi District, Shiga
  Echi is a district located in Shiga, Japan.As of 2003, the district has an estimated population of 34,262 and a density of 325.07 persons per km²...
  
   merged to form then new town of Aishō
  Aisho, Shiga
  is a town located in Echi District in eastern Shiga Prefecture, Japan. The town was founded on February 13, 2006 when the towns of Echigawa and Hatashō merged. The name "Aishō" combines the first character in and the second character in ....
  
  .

• On March 20, 2006 - the town of Shiga
  Shiga, Shiga
  was a town located in Shiga District, Shiga, Japan. It is on the western shore of Lake Biwa and the eastern foot of Hira Mountains.The original village called Shiga was located slightly north of Ōtsu, and merged with Ōtsu on May 10, 1932...
  
   from Shiga District
  Shiga District, Shiga
  Shiga was a district located in Shiga, Japan.As of 2003, the district has an estimated population of 21,964 and a density of 306.20 persons per km². The total area is 71.73 km²....
  
   merged into the city of Ōtsu
  Otsu, Shiga
  is the capital city of Shiga, Japan. The city was founded on October 1, 1898. As of October 1, 2010, the city has an estimated population of 338,629 with an average age of 40.7 years and a population density of 905.28 persons per km²...
  
  . Shiga District
  Shiga District, Shiga
  Shiga was a district located in Shiga, Japan.As of 2003, the district has an estimated population of 21,964 and a density of 306.20 persons per km². The total area is 71.73 km²....
  
   was dissolved as a result of this merger.

• On January 1, 2010 - the towns of Kohoku
  Kohoku, Shiga
  was a town located in Higashiazai District, Shiga, Japan. The ruins of Odani Castle are located in Kohoku.As of 2003, the town had an estimated population of 8,745 and a density of 300.72 persons per km². The total area was 29.08 km²....
  
   and Torahime
  Torahime, Shiga
  was a town located in Higashiazai District, Shiga, Japan.As of 2003, the town had an estimated population of 5,737 and a density of 607.09 persons per km². The total area was 9.45 km²....
  
   from Higashiazai District
  Higashiazai District, Shiga
  was a district located in Shiga Prefecture, Japan.From the reports of 2005 Census, the district had an estimated population of 14,509. The total area was 38.53km².-Timeline:*April 1, 1971 - The village of Biwa gained town status....
  
   and the towns of Kinomoto
  Kinomoto, Shiga
  was a town located in Ika District, Shiga, Japan. It was the center of the district. In Sengoku period, Battle of Shizugatake broke out at a mountain in the west of Kinomoto....
  
  , Nishiazai
  Nishiazai, Shiga
  was a town located in Ika District, Shiga, Japan.As of 2003, the town had an estimated population of 4,735 and a density of 70.62 persons per km². The total area was 67.05 km²....
  
  , Takatsuki
  Takatsuki, Shiga
  was a town located in Ika District, Shiga, Japan.As of 2003, the town had an estimated population of 10,411 and a population density of 368.27 persons per km². The total area was 28.27 km²....
  
  , and Yogo
  Yogo, Shiga
  was a town located in Ika District, Shiga, Japan.As of 2003, the town had an estimated population of 4,045 and a density of 24.13 persons per km². The total area was 167.62 km².On January 1, 2010, several municipalities were merged into the city of Nagahama...
  
   from Ika District
  Ika District, Shiga
  Ika was a district located in Shiga, Japan.As of 2003, the district had an estimated population of 27,986 and a density of 79.65 persons per km². The total area was 351.38 km²....
  
   merged into the city of Nagahama
  Nagahama, Shiga
  is a city located in Shiga Prefecture, Japan on the eastern shore of Lake Biwa. The city center was developed and renamed by Toyotomi Hideyoshi when Hideyoshi moved his center of administration from Odani Castle...
  
  . Higashiazai District
  Higashiazai District, Shiga
  was a district located in Shiga Prefecture, Japan.From the reports of 2005 Census, the district had an estimated population of 14,509. The total area was 38.53km².-Timeline:*April 1, 1971 - The village of Biwa gained town status....
  
   and Ika District
  Ika District, Shiga
  Ika was a district located in Shiga, Japan.As of 2003, the district had an estimated population of 27,986 and a density of 79.65 persons per km². The total area was 351.38 km²....
  
   were both dissolved.

• On March 21, 2010 - the city of Ōmihachiman
  Omihachiman, Shiga
  is a city in Shiga Prefecture, Japan.The city was founded on March 31, 1954. In the quinquennial census of 2010, it had a population of 81,730...
  
   and the town of Azuchi
  Azuchi, Shiga
  was a town located in Gamō District, Shiga, Japan.As of 2003, the town had an estimated population of 12,217 and a density of 502.76 persons per km². The total area was 24.30 km²....
  
   from Gamō District
  Gamo District, Shiga
  is a district located in Shiga, Japan.As of September 1, 2011, the district has an estimated population of 35,629 and a density of 220 persons per km²...
  
   merged to form the city of Ōmihachiman
  Omihachiman, Shiga
  is a city in Shiga Prefecture, Japan.The city was founded on March 31, 1954. In the quinquennial census of 2010, it had a population of 81,730...
  
  .