What is the population of Cardiff?

The population of Cardiff is 364,248.

Where is Cardiff located?

Cardiff is located at latitude 51.5000000 and longitude -3.1666700. It is in United Kingdom.

The area of Cardiff is 140.8981 km².

Cardiff is in the Europe/London time zone.

The population of Cardiff has increased from 305,347 (2001) to 364,248 (2018), a change of 19.3%.

City and County of Cardiff: principal area in south-east Wales, United Kingdom.

Population	364,248
Country	United Kingdom
State	Wales (United Kingdom)
Different from	Cardiff
Area	140.9 km²
Official name	Dinas a Sir Caerdydd, City and County of Cardiff
Latitude & Longitude	51.5000,-3.1667
Legislative body	council of City of Cardiff Council
Time Zone	Europe/London
Local time	20:07:42 (23rd September 2026)

Cardiff is located at 51°30'0"N 3°10'0"W (51.5000000, -3.1666700). It has 3 neighbors: Bro Morgannwg, City of Bristol and County Borough of Caerphilly.

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Official website of Cardiff

Official Website

Cardiff has 3 neighbours.

Year	Population	% Change	Method
2001	305,347	-	United Kingdom Census 2001
2011	346,090	13.34%	United Kingdom Census 2011
2018	364,248	5.25%	estimation process

CRF, Dinas a Sir Caerdydd