臺中縣
On 16 August 1950, another division reform was implemented. The southern part of the county was separated and established Changhua County and Nantou County. The remaining Taichung County has territory equivalent to the Toyohara (Fengyüan), Tōsei (Tungshih), Taikō (Tachia), and Daiton (Tatun) in the Japanese era. In addition, districts in the remaining part of Taichung County was defunct. All townships were directly controlled by the County Government. On 25 December 2010, the county merged with Taichung City to form a larger single special municipality.