Almost nine in 10 Ukip voters will vote for the Eurosceptic party in the general election next year, a survey has predicted.
The poll, which was undertaken by ComRes, found 86 per cent of people who voted for Ukip would continue to do so again in 2015.
Ukip won 4.3 million votes in the EU ballots last week and topped the polls, beating main opposition parties Labour and the Conservatives.
They scored a 27.5 per cent share of the votes, compared to the 16.5 per cent they won in 2009 and under three per cent in the general election.
The results, published on Saturday in the Telegraph, found 40 per cent of those who voted Ukip last week were “certain” to back the party next year and another 49 per cent said they were “likely” to do so.
However, 14 per cent of participants said they would probably back another party.
According to the poll, Ukip voters were attracted to the party’s policy on immigration and Mr Farage’s complaints Britain had lost controls of its borders in Europe.
Following the results shadow business secretary, Chuka Umunna, accused Nigel Farage of "maliciously" distorting the immigration debate - but warned that public concerns on the issue cannot be ignored.
He said: “Ukip topped the poll in the European elections.
“I don't like that but that is what happened and we must respect the result. But the British people will now watch carefully how we respond and what we say and do for the next 11 months before deciding whether and how to vote next year.
"I say 'whether' because two thirds of them did not turn out to vote this time. It is our duty as democrats to do all we can to get people voting.”
Conservative minister, Sajid Javid, told Total Politics magazine the Tories plan to reform EU immigration rules.
He said: “We do recognise that we as a country today have much more control over non-EU immigration – and we have virtually no control over EU immigration.
“That’s something that we’d like to change, but that is much easier said than done at this point and requires renegotiating with our European partners, and that’s something that Conservatives are committed to.”
Ukip is hoping to win its first MP a seat on Thursday in Newark following a by-election. ComRes interviewed 4,078 adults for the poll