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Cardiff population statistics

In 2017, there were 1.1M residents in Cardiff postcode area with an average age of 39.5 years. Population density was 647 residents per square kilometer. In England and Wales, the average age was 40. Based on Census, there were 2.39 residents per household in 2011.


total residents
estimates 2017


average age
estimates 2017


population density
estimates 2017


residents per household
Census 2011

Cardiff population density map

shows a number of residents per square kilometer(km2), estimates from 2017.

Cardiff population density map

Cardiff population average age map

Population average age by LSOA (County) in 2017.

Cardiff population average age map

Cardiff population growth

Total population per year outlines headcount differences.

Cardiff population growth

Cardiff births and deaths

by year. Figures are for deaths registered, rather than deaths occurring in each calendar year. It can take months for a death referred to a coroner to be registered.

Cardiff births and deaths

Cardiff population pyramid

shows the distribution of various age groups in a population in 2017. Females are shown on the left, males are shown on the right.

Cardiff population pyramid by year

Cardiff population share by decade of age

Ordered from the most to the least populous age group, 2017.

Cardiff population share by decade of age by year

Cardiff population by working age group

age grouphead-countshare in population

Cardiff average age rank

Comparison of postcode areas average ages, 2017 population estimates.

Cardiff average age rank by year

Cardiff population average age

Annual area statistics of Cardiff's population average age compared to country statistics.

Cardiff population average age by year

Cardiff residential areas map

Purple-colored areas are business or industrial areas. Green-colored areas provide quieter surroundings and better living. Map is based on a UK Census 2011 data. Colors calculated from the ratio of number of residents divided by a number of workday people.

Cardiff residential areas map

Associated reports:

Cardiff population changes

Cardiff home energy certificates

Cardiff energy costs

Cardiff salary and unemployment

Cardiff real estate market

Cardiff crime statistics

Cardiff home features

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