West Sussex population statistics

In 2024, there were 915k residents in West Sussex with an average age of 43.6 years. Population density was 460 residents/km². 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, 2024	West Sussex county	England + Wales
Total residents	915k	1.5% of Eng+Wls
Average age	43.6	40.8
Population density	460	409

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.

Total annual population in West Sussex county and Compound Annual Growth Rate (CAGR) compared to England and Wales
Year	Total population	CAGR	CAGR ENG+WLS
2024	915k	0.86%	0.74%
2023	904k	0.85%	0.72%
2022	893k	0.83%	0.68%
2021	885k	0.82%	0.66%
2020	875k	0.81%	0.68%
2019	872k	0.83%	0.71%
2018	866k	0.84%	0.72%
2017	860k	0.85%	0.73%
2016	852k	0.84%	0.75%
2015	843k	0.82%	0.74%
2014	834k	0.81%	0.74%
2013	825k	0.79%	0.73%
2012	818k	0.77%	0.73%
2011	809k	0.74%	0.73%
2010	803k	0.74%	0.72%
2009	796k	0.72%	0.70%
2008	791k	0.73%	0.70%
2007	784k	0.70%	0.67%
2006	777k	0.66%	0.63%
2005	771k	0.59%	0.61%
2004	766k	0.57%	0.52%
2003	761k	0.48%	0.50%
2002	757k	-	-

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%

West Sussex average age rank

Comparison of counties average ages, 2024 population estimates.

West Sussex average age rank by year

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.

Population average age by year
Year	West Sussex county	England and Wales
2024	43.6	40.8
2023	43.5	40.7
2022	43.5	40.7
2021	43.4	40.7
2020	43.3	40.5
2019	43.1	40.4
2018	43.0	40.2
2017	42.8	40.1
2016	42.7	39.9
2015	42.6	39.8
2014	42.6	39.7
2013	42.4	39.6
2012	42.3	39.5
2011	42.3	39.4
2010	42.2	39.3
2009	42.1	39.2
2008	42.0	39.2
2007	41.9	39.1
2006	41.8	39.0
2005	41.8	39.0
2004	41.7	38.9
2003	41.6	38.8
2002	41.5	38.7

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.