On 11 February 1921 the Estonian Government fixed the area of Valga County. Võru County gave Kaagjärve, Karula, Laanemetsa and Taheva parishes, Tartu County gave Tõlliste, Laatre, Sangaste, Keeni and Kuigatsi parishes, Viljandi County gave Jõgeveste, Patküla, Koorküla, Taagepera, Leebiku, Helme, Lõve and Hummuli parishes. Later on, several administrative territorial changes were carried through. In 1921 Patküla parish was separated from Holdre parish and Tõrva borough. Puraküla, which formerly belonged to Paju parish was united to the town of Valga in 1922. In 1924 Paju parish was united to Sooru parish and on 2 July 1926, it started to bear the name Tõrva. Since the second half of the 1920s until 1939 there were 19 parishes in Valga County.