Region Sjælland (English: Region Zealand) is an administrative region of Denmark established on January 1, 2007 as part of the 2007 Danish Municipal Reform, which replaced the traditional counties ("amter") with five larger regions. At the same time, smaller municipalities were merged into larger units, cutting the number of municipalities from 271 to 98. The reform was implemented in Denmark on January 1, 2007.Region Sjælland consists of the former counties of Roskilde, Storstrøm, and Vestsjælland.