It appears there were 19 partisan elections won by minor parties on November 8, 2016. The Progressive Party won the Vermont Lieutenant Governorship and nine state legislative races.
The Green Party won five partisan elections in Michigan and one in Connecticut. The office in Connecticut was Registrar of Voters of New Canaan. The Michigan offices were: (1) County Board in Grand Traverse County; (2) two seats on the Park Commission of Ypsilanti Township, Washtenaw County; (3) one seat on the Park Commission of Holly Township, Oakland County; (4) Town Clerk of Newberg Township, Cass County.
The Libertarian Party won one partisan election in Indiana, one in Kentucky, and one in Michigan. The offices were: (1) Town Judge in Hagerstown, Indiana; (2) County Commission, seat B, in Jefferson County, Kentucky; (3) one seat on the Park Commission of Ypsilanti Township, Washtenaw County, Michigan.