1. Environmental
May 16, 2022

Where are the largest cities in Britain?

Britain's cities are surprisingly hard to define, so it all depends how you count. How big is Sheffield, for example?

By Jonn Elledge

A property listing in Sheffield for the old town hall recently suggested it had been the nerve centre of the UK’s third-largest metropolis in its history. This dilemma brought up the age-old question – what are the largest cities in Britain? However, there is one slight issue with this ambition: cities are surprisingly hard to define.

largest cities in Britain
Just how big is Sheffield? (Photo by SAKhan Photography/Shuttertock)

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Municipal boundaries

The reason Sheffield had somehow sneaked its way into third place, despite manifestly not being the country’s third-largest city, is because it’s often listed as the third-largest individual local authority in England, with a population of around 584,000. Only Leeds (792,000) and Birmingham (1.1 million) are bigger. Actually, so is Glasgow, with 635,000, but for some reason, a single list of local authorities covering the entire UK is surprisingly hard to come by.

And already, you can see another problem with this definition: there isn’t a London-wide local authority that’s directly comparable to these places. Greater London is more sensibly compared to the other old metropolitan counties (West Midlands, West Yorkshire, etc). But while Greater Manchester is a pretty coherent entity these days, several of the others are still arguing about whether they’re one city or several.

Nonetheless, in the name of completism, here are the populations of England’s largest metropolitan counties in 2021, per the Office of National Statistics:

  1. Greater London – 9,078000
  2. West Midlands (Birmingham) – 2,936,000
  3. Greater Manchester – 2,819,000
  4. West Yorkshire (Leeds-Bradford) – 2,314,000
  5. Merseyside (Liverpool) – 1,412,000
  6. South Yorkshire (Sheffield) – 1,396,000
  7. Tyne & Wear (Newcastle) – 1,125,000

…and of some of the bigger official “cities” they contain:

  • Birmingham – 1,153,000
  • Leeds – 792,000
  • Sheffield – 582,000
  • Manchester– 558,000
  • Bradford– 532,000
  • Liverpool – 494,000
  • Bristol – 470,000
  • Newcastle – 296,000
  • Sunderland – 275,000
  • Wolverhampton – 261,000

Right. Now that’s out the way, we can get onto the stuff that’s actually useful.

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The urban area

There are a number of other ways of defining city populations, of which perhaps the most obvious is the “urban area” – that is, the continuously built-up zone. This, after all, is the thing that feels like a city when you are actually inside it – or, come to that, when you are flying over it in a plane.

The most up-to-date stats on this measure come from Demographia, a St. Louis-based consultancy, which every year gathers data on every city with a population of 500,000 or more and ranks it in its World Urban Areas Report.

Demographia lists the UK’s most populous urban areas in 2020 as:

  1. London – 11,120,000
  2. Manchester – 2,747,000
  3. Birmingham-Wolverhampton – 2,624,000
  4. Leeds-Bradford – 1,903,000
  5. Glasgow – 1,264,000
  6. Southampton-Portsmouth – 932,000
  7. Liverpool – 910,000
  8. Newcastle – 820,000
  9. Nottingham – 791,000
  10. Sheffield – 735,000
  11. Bristol – 687,000
  12. Belfast – 639,000
  13. Leicester – 555,000
  14. Edinburgh – 536,000

A number of comments about this data. Firstly, on this definition, Britain’s historic second city Birmingham has been shoved into third place. Poor Birmingham.

Secondly, the only one of the four UK countries without a city of this size is Wales: Cardiff, with 478,000 residents, just misses ranking.

Perhaps the most unexpected entry here is in sixth place. No one would think of either Southampton or Portsmouth as a major city: considered as a single entity, though, which in terms of sprawl they are, they’re bigger than relative giants such as Liverpool or Newcastle.

Oh, and Sheffield barely makes the top 10, so it is definitely not the third largest city in Britain. Just to be clear.

But there are other ways of defining cities.

[Read more: The most and least housing-secure cities in England and Wales]

Primary urban areas

Primary Urban Areas (PUAs) are, essentially, collections of local authorities that function a bit like single cities. They were created by the Department for Communities & Local Government as a statistical tool to help it draw comparisons between very different places. The aim was to come up with a list of areas less arbitrary than existing council boundaries; but which still allowed you to count largely independent but touching cities (Southampton and Portsmouth, say) as independent entities.

Centre for Cities uses PUAs in its research and lists the top 10 areas -according to the latest statistics from 2021 – as:

  1. London – 10,257,7000
  2. Birmingham – 2,560,500
  3. Manchester – 2,517,500
  4. Glasgow – 1,019,900
  5. Newcastle – 868,800
  6. Sheffield – 854,200
  7. Leeds – 798,800
  8. Bristol – 753,700
  9. Nottingham – 685,200
  10. Liverpool – 653,000

Manchester is rather shrunken by this metric, while Birmingham is back in second place. Leeds, deprived of Bradford, has fallen a long way down the league tables. And Southampton and Portsmouth, two cities once again, are nowhere to be seen.

Let’s look at one last definition:

Metropolitan areas

Metropolitan areas are, in the most literal sense, the big ones – not simply a city itself, but all of the surrounding areas including suburbs, commuter towns and rural hinterland. On this definition, London isn’t Greater London – it is in fact a large chunk of the Home Counties, too.

The figures below are from a document published in 2007, and are based on data taken from 2001, so the numbers are out of date (hence the inconsistencies with the other lists above). But it’s the best we’ve got so here, courtesy of the EU’s ESPON project, are the top 10.

  1. London – 13,709,000
  2. Birmingham-Wolverhampton – 3,683,000
  3. Manchester – 2,556,000
  4. Leeds-Bradford – 2,302,000
  5. Liverpool-Birkenhead – 2,241,000
  6. Newcastle-Sunderland – 1,599,000
  7. Sheffield – 1,569,000
  8. Southampton-Portsmouth – 1,547,000
  9. Nottingham-Derby – 1,543,000
  10. Glasgow – 1,395,000

Considered as a metro, rather than a city, Birmingham is way ahead of Manchester – a result of its better transport links to surrounding towns, perhaps. The twin cities of South Hampshire are back in the rankings, and several other cities look a lot bigger when the whole of their economic footprint is taken into account.

Glasgow, however, does not: it barely makes the top 10. Compared to cities like Birmingham or Leeds, it doesn’t have much of a hinterland.

Towards a conclusion

What should be clear by now is that no definitive ranking is possible. You can say that London is definitely the UK’s biggest city, and realistically everyone will accept it as gospel. You can say that Manchester is bigger than Newcastle, and be on pretty safe ground. But is Manchester bigger than Birmingham? The answers suddenly begin to become less clear.

What we can do, though, is come up with a sort of typology: not a numbered ranking, exactly, but a sort of way of visualising which league cities are playing in.

Here you go:

  • Megacity: London
  • Second cities: Birmingham, Manchester
  • Major cities: Glasgow, Leeds, Liverpool, Newcastle, Sheffield
  • Large cities: Belfast, Bristol, Nottingham, Southampton/Portsmouth, Leicester, etc.

The latter category is incomplete: other cities, like Cardiff, Edinburgh, Middlesbrough, even Brighton or Bournemouth, probably have a claim to be in there, too. Britain only has one city whose population even hits 10m, but a couple of handfuls of them are bobbing around the 500,000 mark.

But the point, in the end, is clear; Sheffield does not come close to taking the top spot.

For more recent figures, try The 25 largest cities in the UK (and their investment strengths).

[Read more: Where are the largest cities in the US?]

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