- Democratic congressional and state primaries: mixed
- Republican congressional and state primaries: mixed
- Democratic Presidential primary: mixed
- Republican Presidential primary: mixed
- Voters may or may not choose to affiliate with a political party.
- 23% of voters in West Virginia are registered as "no party" or "other."
Details of voting in congressional and state primary elections:
- Parties decide who may participate in their primary elections.
- The two major parties both allow unaffiliated voters to participate in party primaries.
- Unaffiliated voters choose one party's ballot.
- Party members must vote in their party's primary.