Västmanland County (Swedish: Västmanlands län) is a county or län in central Sweden. It borders the counties of Södermanland, Örebro, Gävleborg, Dalarna and Uppsala. The county also has a stretch of shoreline towards Mälaren (Sweden's third largest lake). Province. For history, geography and culture, see: Västmanland (Westmannia) Administration. https://en.wikipedia.org/wiki/V%C3%A4stmanland_County