Hertfordshire population statistics

In 2024, there were 1.2M residents in Hertfordshire with an average age of 40.3 years. Population density was 752 residents/km². Population grew by 18.8% since 2002 and population average age increased by 2 years in the same period.

Key Population Data: Residents, Age and Density in 2024 (latest estimate from ONS)
Population Estimates, 2024	Hertfordshire county	England + Wales
Total residents	1.2M	2% of Eng+Wls
Average age	40.3	40.8
Population density	752	409

Hertfordshire population density map

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

Hertfordshire population average age map

Population average age by LSOA (County) in 2018.

Hertfordshire population growth

Total population per year outlines headcount differences.

Total annual population in Hertfordshire county and Compound Annual Growth Rate (CAGR) compared to England and Wales
Year	Total population	CAGR	CAGR ENG+WLS
2024	1.2M	0.79%	0.74%
2023	1.2M	0.76%	0.72%
2022	1.2M	0.74%	0.68%
2021	1.2M	0.76%	0.66%
2020	1.2M	0.79%	0.68%
2019	1.2M	0.81%	0.71%
2018	1.2M	0.83%	0.72%
2017	1.2M	0.87%	0.73%
2016	1.2M	0.90%	0.75%
2015	1.2M	0.89%	0.74%
2014	1.2M	0.88%	0.74%
2013	1.1M	0.86%	0.73%
2012	1.1M	0.84%	0.73%
2011	1.1M	0.82%	0.73%
2010	1.1M	0.79%	0.72%
2009	1.1M	0.75%	0.70%
2008	1.1M	0.71%	0.70%
2007	1.1M	0.62%	0.67%
2006	1.1M	0.54%	0.63%
2005	1.1M	0.48%	0.61%
2004	1.0M	0.33%	0.52%
2003	1.0M	0.48%	0.50%
2002	1.0M	-	-

Hertfordshire 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.

Hertfordshire population pyramid by year

Hertfordshire population share by decade of age

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

Hertfordshire 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	245k	19.8%	18.3%
16-64	775k	62.7%	62.8%
65+	216k	17.5%	18.9%

Hertfordshire average age rank

Comparison of counties average ages, 2024 population estimates.

Hertfordshire average age rank by year

Average Age in Hertfordshire county and Comparison to England & Wales
county	Average age in 2024
Hertfordshire	40.3
England & Wales	40.8

Hertfordshire population average age

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

Population average age by year
Year	Hertfordshire county	England and Wales
2024	40.3	40.8
2023	40.2	40.7
2022	40.2	40.7
2021	40.0	40.7
2020	39.9	40.5
2019	39.8	40.4
2018	39.7	40.2
2017	39.5	40.1
2016	39.4	39.9
2015	39.3	39.8
2014	39.2	39.7
2013	39.1	39.6
2012	39.1	39.5
2011	39.0	39.4
2010	38.9	39.3
2009	38.8	39.2
2008	38.7	39.2
2007	38.7	39.1
2006	38.7	39.0
2005	38.6	39.0
2004	38.5	38.9
2003	38.4	38.8
2002	38.3	38.7

Hertfordshire 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.