The population of Blackburn with Darwen is 154,922 according to mid-2021 population figures published by the ONS. Based on recent growth rates we estimate the current 2023 population of Blackburn with Darwen to be . In the year between mid-2020 and mid-2021, the population in Blackburn with Darwen grew by an estimated 4,892 people, and in the ten years prior to mid-2021, the population grew by 7,068. Compare population by area.
Blackburn with Darwen's population growth rate between mid-2020 and mid-2021 was 3.3%, which is 2.7% higher than the average population growth rate in Blackburn with Darwen for the ten years prior to mid-2021 (0.5%).
Blackburn with Darwen covers an area of 137 square kilometres (53 square miles) and has a population density of 1,131 people per square kilometre (km2), based on the latest population estimates taken in mid-2021. That figure has by people per km2 over the past decade.
Between mid-2019 and mid-2020, net internal migration out of Blackburn with Darwen was 616, and net international migration into Blackburn with Darwen was 443.
Blackburn with Darwen's fertility rate (the total number of children that would be born to the average woman in Blackburn with Darwen if she were to live to the end of her child-bearing years) of 2.05, and birth rate (the number of live births per thousand of population per year) of 12.7, led to population increases of 1,905 during the year, and Blackburn with Darwen's death rate or mortality rate (the number of deaths per thousand of population per year) of 9.6 resulted in a 1,434 population decrease. In total, a net 471 person natural increase.
During the past decade, internal migration has risen from a net outflow of 1,129 in 2011 to a net 616 outflow. International migration has risen from a net inflow of 159 in 2011 to an inflow of 443 in 2021.
The natural increase in population, due to births and deaths, has fallen from an annual net increase of 1,161 people in 2011 to 471 in 2021.
Births and deaths was the largest driver of population change over the past decade, representing circa 338% of the total change in population (over 100% as other factors were net outflows).
Blackburn with Darwen's population, population density, and population growth rate, over the past decade.
Figures reported by the ONS in 2022.
Blackburn with Darwen's forecast, population density, and population growth rate, over the next twenty years. Figures reported by the ONS in 2018.
The population of Blackburn with Darwen is forecast to be 149,212 in 2025 and 148,990 in 2030.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2022. Data sources: ONS Local statistics