The British National Party also won two seats in the European parliament, including the election of party leader Nick Griffin as MEP for the North West region of England.
The results come despite wide-ranging condemnation of the party from across the political spectrum before the vote and an anti-BNP campaign by anti-fascist group Searchlight backed by Blue State Digital, the PR firm behind Barack Obama's Presidential campaign.
Insight Public Affairs account director Amanda Stuart said: 'The BNP have been forced to exist outside the mainstream media, but have succeeded despite this lack of engagement as they have cultivated a format of campaigning that relies on community networks, door-stepping and leaflet campaigns highly targeted in working class areas.'
Labour had slumped to a historic low of 16 per cent in the European elections last night, putting it behind the resurgent UK Independence Party.
The UKIP and the BNP's election triumphs have failed to headline the national press this morning as Gordon Brown's unstable position in Government continues to dominate the media.
The Daily Telegraph ran with the headline ‘Brown on the Edge', while the Independent featured a picture of Brown with the caption ‘Meltdown.'
Fishburn Hedges associate director Simon Redfern said: ‘The fact that both results are in Labour's heartlands must be a setback for the party but also highlights a depth of disaffection with all mainstream political parties. All politicians, local and national, have to get on top of this situation as a priority.'