Career
That year the area around Vangsnes was moved to Vik municipality, and so Hopperstad became a municipality council member there. He served as mayor from 1974-1987. Since 1992 he served as county mayor, and from 1995 as deputy county mayor.
That year the area around Vangsnes was moved to Vik municipality, and so Hopperstad became a municipality council member there. He served as mayor from 1974-1987. Since 1992 he served as county mayor, and from 1995 as deputy county mayor.
A farmer from Vangsnes, he was a member of Balestrand municipality council from 1960 to 1964. He was also a member of the county council from 1964-1975 and 1980-1999.