Population of the United Kingdom (UK) 2018, by country

In 2018 the population of the United Kingdom was estimated to have been over 66.44 million with 55.97 million of these people living in England. Scotland had the next highest population, at 5.44 million people, followed by Wales at 3.14 million and finally Northern Ireland which had 1.88 million people living there in 2018.

Regions and Counties
The United Kingdom is a patchwork of various regional units, within England the largest of these are regions which show how London, along with the rest of South East England had almost 18 million people living there in 2018. The next significant regional units are the 47 metropolitan and ceremonial counties, the smallest of which is Rutland which had a population of just under 40 thousand in 2017.

Regional divisions in Scotland, Wales and Northern Ireland
The smaller countries that make up the United Kingdom each have different local subdivisions. Within Scotland these are called council areas whereas in Wales the main regional units are called unitary authorities. Northern Ireland on the other hand has eleven local government districts, the largest of which is Belfast with a population of around 340 thousand.

Mid year population estimate of the United Kingdom in 2018, by country

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Release date

June 2019


United Kingdom

Survey time period


Supplementary notes

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Statistics on "Demographics of the UK"

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