West Sussex population statistics

In 2024, there were 915k residents in West Sussex county with an average age of 43.6 years. Population density was 460 residents per square kilometer. Population grew by 20.8% since 2002 and population average age increased by 2.1 years in the same period.

Key Population Data: Residents, Age and Density in 2024 (latest estimate from ONS)
Population Estimates	Value in 2024
Total residents	915k
Average age	43.6
Population density	460

West Sussex population density map

shows a number of residents per square kilometer(km²), estimates from 2020.

West Sussex population average age map

Population average age by LSOA (County) in 2018.

West Sussex population growth

Total population per year outlines headcount differences.

West Sussex population pyramid

shows the distribution of various age groups in a population in 2024. Females are shown on the left, males are shown on the right.

West Sussex population pyramid by year

West Sussex population share by decade of age

Shares of population age groups compared to corresponding shares of population groups in England & Wales, 2024.

West Sussex working age population share

Working age population share compared to working age population share in England & Wales, 2024.

Age Distribution and Comparison to England & Wales
age group	head-count	% share of population	% for Eng & Wales
0-15	161k	17.6%	18.3%
16-64	542k	59.2%	62.8%
65+	213k	23.3%	18.9%

Average Age in West Sussex county and Comparison to England & Wales
county	Average age in 2024
West Sussex	43.6
England & Wales	40.8

West Sussex population average age

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

West Sussex 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.