In the 2004 Spanish General Election the Partido Socialista Obrero Español got 80.0% (16 votes) in Cabezón de Cameros, the Partido Popular got 15.0% of the vote (3 votes), and Izquierda Unida, got 5.0% (1 vote).
In the 2004 Spanish general election, the Socialist Workers' Party of Spain won 80% of the vote in Cabezón de Cameros with 16 votes, while the People's Party received 15% of the vote with 3 votes, and Izquierda Unida got 5% of the vote with 1 vote.