Hertfordshire population statistics

In 2024, there were 1.2M residents in Hertfordshire county with an average age of 40.3 years. Population density was 752 residents per square kilometer. 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	Value in 2024
Total residents	1.2M
Average age	40.3
Population density	752

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.

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%

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.

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.