Ealing is the most Eurosceptic borough in west London and Brent is in the top 10 most Europhile places in Britain, new research suggests.

A referendum on the UK's membership of the European Union (EU) will be held on June 23, meaning west Londoners have four months to decide if they support the In or Out campaign.

According to polling company YouGov, who gauged opinion from more than 80,000 people in Britain, Ealing ranked at 42 out of 188 places in terms of Euroscepticism where "reliable data" was available.

YouGov identifies the borough as "leaning Eurosceptic" and, by contrast, Brent ranked 179 out of 188 putting it in the top 10 most Europhile places in Britain.

READ MORE: EU referendum: Were do west London MPs stand?

The report adds: "The Euroscepticism of various areas partly correlates with lower income (we see this effect in our national polling where higher social grades are more clearly in favour of remaining in the EU), but Euroscepticism also has strongholds in the more wealthy, Tory shires.

"Apart from in Scotland (all Europhile and one mixed), parts of Wales and London many of the Europhile areas are university towns with lower median ages - Liverpool, Manchester, York and Bristol.

"And support for remaining in the EU almost always is concentrated in geographically smaller, urban areas."

Prime Minister David Cameron has announced an EU referendum in June (Pic: by Dan Kitwood/Getty Images)

Mayor of London Boris Johnson declared in February that he was supporting the Out campaign to leave the EU , saying he felt the current situation was "getting out of proper democratic control".

Labour MP Stephen Pound , who has represented Ealing North since 1997, admitted he was surprised by the figures but believes the borough would be better off staying in the EU.

Mr Pound said: "I believe in staying in the EU, it is in the interests of all of us to remain.

"I firmly do believe that we would have less trade in having a lesser say in the world."

Heathrow Airport recently released a statement saying bosses believed the UK was better off as a member of the EU .

Boris wants out (Pic: Chris Ratcliffe/Getty Images)

The Conservative councillors getwestlondon contacted have not responded to a request for comment.

Labour MP Rupa Huq , who represents Ealing Central and Acton, wrote in a previous edition of the Ealing Gazette, titled "We are stronger in the EU", that leaving the union would not in the boroughs interests.

She said: "To leave behind our biggest trading partner would put jobs and growth at serious risk.

"Our small nation is much stronger with the combined might of 28 nation states rather than a fanciful idea that we could ever go it alone."

From the 188 places surveyed, Hillingdon ranked at 57, leaning Eurosceptic, Hounslow at 85 and Harrow at 113 - both defined as "in the middle."

But Westminster ranked at 173, identified as "relatively Europhile" and Hammersmith and Fulham ranked at 175, also "relatively Europhile".