The libraries in Dimboola and Nhill as well as the mobile library visiting Rainbow and Jeparit are operated by the Wimmera Regional Library Corporation. The Corporation is situated in the northwest of Victoria. It covers an area of approximately 42,000 sq. kms. and serves six local government bodies - Buloke Shire Council, Hindmarsh Shire Council, Horsham Rural City Council, Northern Grampians Shire Council, West Wimmera Shire Council and Yarriambiack Shire Council. The Shires have a combined population of approximately 52,000. As these figures indicate, its clientele is predominantly rural-based and often has considerable distances between centres.
The Wimmera Regional Library operates 11 static branches and one mobile library. The mobile library visits 17 sites over a two week roster period.