|County of the Republic of China|
|•||Established||7 January 1946|
|•||Disestablished||25 December 2010|
|Political subdivisions||2 County-controlled cities|
7 Urban townships
22 Rural townships
|Today part of||Part of the Tainan (Special municipality)|
|Traditional Chinese||臺南縣 or 台南縣|
Tainan County was established on 7 January 1946 on the territory of Tainan Prefecture (臺南州) shortly after the end of World War II. In the early years, Tainan County consists of most territory of Tainan Prefecture except the territory near cities of Tainan and Kagi (Chiayi). The county is subdivide into districts (區), which is reformed from Japanese districts (郡). The districts are divided into townships.
|Shin'ei||新営郡||Hsin-ying||新營區||Defunct in July 1946, townships controlled by the County directly|
On 16 August 1950, another division reform was implemented. The northern part of the County was separated and established Chiayi County and Yunlin County. The remaining Tainan County has territory equivalent to the Shin'ei (Hsinying), Niitoyo (Hsinfeng), Shinka (Hsinhua), Sobun (Tsengwen), and Hokumon (Peimen) in the Japanese era. In addition, districts in the remaining part of Kaohsiung County was defunct. All townships were directly controlled by the County Government. On 25 December 2010, the county merged with Tainan City to form a larger single special municipality.
The subdivisions of the County remains mostly stable between 1950 and 2010. However, some changed has also been made.
- 10 Mar 1946, Anshun (安順鄉) was merged into Tainan City and reformed from a rural township to a district.
- 2 Feb 1968, Hsuehchia (學甲鄉) reformed from a rural township to an urban township for its population.
- 25 Dec 1981, Hsinying (新營鎮) reformed from an urban township to a county-controlled city for its position as a county seat.
- 1 May 1993, Yungkang (永康鄉) reformed from a rural township to a county-controlled city for its population.
In 25 Dec 2010, The County was merged with Tainan City, all cities and townships became districts. On the eve of merging with Tainan City, the county consists of the following administrative divisions