The population of Milton Keynes is 270,203 according to mid-2020 population figures published by the ONS. Based on recent growth rates we estimate the current 2022 population of Milton Keynes to be 271,701. In the year between mid-2019 and mid-2020, the population in Milton Keynes grew by an estimated 746 people, and in the ten years prior to mid-2020, the population grew by 20,308. Compare population by area.
Milton Keynes's population growth rate between mid-2019 and mid-2020 was 0.3%, which is 0.6% lower than the average population growth rate in Milton Keynes for the ten years prior to mid-2020 (0.9%).
Milton Keynes covers an area of 309 square kilometres (119 square miles) and has a population density of 876 people per square kilometre (km2), based on the latest population estimates taken in mid-2020. That figure has increased by 66 people per km2 over the past decade.
Between mid-2019 and mid-2020, net internal migration out of Milton Keynes was 123, and net international migration out of Milton Keynes was 530.
Milton Keynes's fertility rate (the total number of children that would be born to the average woman in Milton Keynes if she were to live to the end of her child-bearing years) of 1.84, and birth rate (the number of live births per thousand of population per year) of 11.9, led to population increases of 3,219 during the year, and Milton Keynes's death rate or mortality rate (the number of deaths per thousand of population per year) of 7.5 resulted in a 2,026 population decrease. In total, a net 1,193 person natural increase.
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During the past decade, internal migration has fallen from a net inflow of 977 in 2011 to a net 123 outflow. International migration has fallen from a net inflow of 326 in 2011 to an outflow of 530 in 2020.
The natural increase in population, due to births and deaths, has fallen from an annual net increase of 2,337 people in 2011 to 1,193 in 2020.
Births and deaths was the largest driver of population change over the past decade, representing circa 81% of the total change in population.
Milton Keynes's population, population density, and population growth rate, over the past decade.
Figures reported by the ONS in 2021.
Milton Keynes's forecast, population density, and population growth rate, over the next twenty years. Figures reported by the ONS in 2018.
The population of Milton Keynes is forecast to be 275,874 in 2025 and 277,620 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