United Kingdom vs Ireland — Country Comparison

The flag of the United Kingdom — the Union Jack — has a blue field. It features the white-edged red cross of Saint George superimposed on the diagonal red cross of Saint Patrick which is superimposed on the diagonal white cross of Saint Andrew.United Kingdom VS The flag of Ireland is composed of three equal vertical bands of green, white and orange.Ireland

United Kingdom and Ireland side by side: United Kingdom is the larger country (244,376 km² vs 70,273 km², roughly 3.5× the size), while United Kingdom has the bigger population (69.3 million vs 5.5 million). The full comparison table below covers capitals, currencies, languages, dialling codes, timezones and more.

Facts last checked 31 August 2026.

FactUnited KingdomIreland
CapitalLondonDublin
Population69,281,4375,458,600
Area244,376 km²70,273 km²
CurrencyBritish poundEuro
LanguagesEnglishEnglish, Irish
Dialling code+44+353
Main timezoneUTC+00:00UTC
Drives on theLeftLeft
RegionNorthern EuropeNorthern Europe
Emergency number999 (or 112)999 (or 112)

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United Kingdom vs Ireland — FAQ

Which is bigger, United Kingdom or Ireland?

United Kingdom is bigger by area: 244,376 km² vs 70,273 km², roughly 3.5× the size of Ireland.

Is United Kingdom bigger than Ireland?

Yes — United Kingdom covers 244,376 km², compared to 70,273 km² for Ireland.

Which has more people, United Kingdom or Ireland?

United Kingdom has the larger population: 69,281,437 (69.3 million) vs 5,458,600 (5.5 million).

How does the size of United Kingdom compare to Ireland?

United Kingdom (244,376 km²) is about 3.5× larger than Ireland (70,273 km²).

Do United Kingdom and Ireland use the same currency?

No — United Kingdom uses the British pound and Ireland uses the Euro.

Are United Kingdom and Ireland on the same continent?

Yes — both are in Europe.

What is the time difference between United Kingdom and Ireland?

United Kingdom and Ireland are in the same time zone (UTC+00:00).

Do United Kingdom and Ireland share an official language?

Yes — both share English as an official language.

Do United Kingdom and Ireland share a border?

Yes — United Kingdom and Ireland share a land border.

Which is more densely populated, United Kingdom or Ireland?

United Kingdom is more densely populated at roughly 284 people per km², compared to 78 for Ireland.

More comparisons

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