According to new figures released by the Office for National Statistics (ONS), Britain has become almost 10% more crowded after continued years of mass immigration.

The populations in every region of the country has dramatically increased with London seeing the biggest migration soar since 2001.

The statistics released measure the average number of people living in each square kilometre of land. Overall, population density in the UK has risen 9.46% since 2001.

It was discovered that certain areas of the UK are now more crowed than Europe’s most densely populated country (the Netherlands), which has around 500 people per sq km. The North West, for example, is more currently more crowded with 506 per sq km.

When comparing the North and South divide, it is clear that the South of the country has been most affected by migration, with the Eastern region showing an 11.7% rise in contrast to the North East’s population increase of 3%.

In regards to the country’s capital, London, it was recorded that there are now 5,432 people per sq km, showing a population density soar of 16.6 per cent between 2001 and 2014.

Several Southern towns and cities outside of London were found to have more than 4,000 people per sq km, the South East region alone in 2014, experienced a rise to 465 people for every sq km. Portsmouth were the next most crowded after London with figures reaching 5,227 people per sq km, with Southampton and Luton following Portsmouth both with 4,906 people per sq km.

The report revealed that out of the whole of Europe, England are now the second most crowded country with the population for each sq km rising from 379 to 417 between 201 and 2014.

The announced figures are likely to attract large amounts of attention with just weeks to go in the EU referendum debate. With continued arguments building in regards to overcrowded concerns, the data is sure to spark further disputes between both of the sides.