All the provinces of Finland were abolished on January 1, 2010.

[1] The State Provincial Office was a joint regional administrative authority of seven ministries.

The State Provincial Office served at five localities; the main office was placed in Turku, and regional service offices were located in Jyväskylä, Tampere, Vaasa, and Pori.

Approximately 350 persons worked at the State Provincial Office.

The coat of arms of Western Finland was composed of the arms of Finland Proper, Satakunta and Ostrobothnia.