The Rural City of Horsham is a Local Government Area in Victoria, Australia. It is located in the western part of the state. It has an area of 4,239 square kilometres. In 2006 it had a population of 18,492. It was formed in 1995 by the merger of the City of Horsham, most of the Shire of Wimmera and Shire of Arapiles, and part of the Shire of Kowree.