Which are the most populated (in terms of number of voters) and least populated seats being contested in the general election?

Published: 9th Dec 2019

The Isle of Wight has the biggest electorate at about 108,000 (in 2018), while Na h-Eileanan an Iar in Scotland has the smallest number at just over 21,000 (in 2017). The average UK constituency has about 71,000 voters in it.

The House of Commons Library has a searchable tool of constituency data here.


This article is part of our Ask Full Fact series on the 2019 general election, answering your questions about the election, from claims the main parties are making to what happens on polling day.

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Ask Full Fact: election 2019