The population of Chelmsford is 179,549 according to mid-2020 population figures published by the ONS. Based on recent growth rates we estimate the current 2022 population of Chelmsford to be 181,894. In the year between mid-2019 and mid-2020, the population in Chelmsford grew by an estimated 1,161 people, and in the ten years prior to mid-2020, the population grew by 11,058. Compare population by area.
Chelmsford's population growth rate between mid-2019 and mid-2020 was 0.7%, which is 0.1% lower than the average population growth rate in Chelmsford for the ten years prior to mid-2020 (0.7%).
Chelmsford covers an area of 339 square kilometres (131 square miles) and has a population density of 530 people per square kilometre (km2), based on the latest population estimates taken in mid-2020. That figure has increased by 33 people per km2 over the past decade.
Between mid-2019 and mid-2020, net internal migration into Chelmsford was 759, and net international migration into Chelmsford was 391.
Chelmsford's fertility rate (the total number of children that would be born to the average woman in Chelmsford if she were to live to the end of her child-bearing years) of 1.57, and birth rate (the number of live births per thousand of population per year) of 9.9, led to population increases of 1,767 during the year, and Chelmsford's death rate or mortality rate (the number of deaths per thousand of population per year) of 9.5 resulted in a 1,698 population decrease. In total, a net 69 person natural increase.
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During the past decade, internal migration has risen from a net inflow of 224 in 2011 to a net 759 inflow. International migration has risen from a net inflow of 107 in 2011 to an inflow of 391 in 2020.
The natural increase in population, due to births and deaths, has fallen from an annual net increase of 626 people in 2011 to 69 in 2020.
Births and deaths was the largest driver of population change over the past decade, representing circa 40% of the total change in population.
Chelmsford's population, population density, and population growth rate, over the past decade.
Figures reported by the ONS in 2021.
Chelmsford's forecast, population density, and population growth rate, over the next twenty years. Figures reported by the ONS in 2018.
The population of Chelmsford is forecast to be 186,966 in 2025 and 192,324 in 2030.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2021. Data sources: ONS Local statistics