Västerås Konstmuseum was founded in 1972 based on collection of Swedish artists donated to Västerås City by Västerås Konstförening.
Initially it was located in Court House at Fiskartorget. Among the first public exhibitions were shows with artists Endre Nemes and Olle Bærtling. Since September 2010, Västerås konstmuseum is located at Karlsgatan 2.