In 1950, as part of the Communist reforms of local government, the county's borders were re-drawn again. A small part of former Vas county, north of Zalaegerszeg, went to Zala County. The part of Zala county north of Lake Balaton went to Veszprém County.
In 1950, during communist reforms in local government, the county's boundaries were redrawn. A portion of Vas County, situated north of Zalaegerszeg, was transferred to Zala County. The area of Zala County north of Lake Balaton was assigned to Veszprém County.