The population of West Northamptonshire is 406,733 according to mid-2020 population figures published by the ONS. Based on recent growth rates we estimate the current 2022 population of West Northamptonshire to be 410,120. In the year between mid-2019 and mid-2020, the population in West Northamptonshire grew by an estimated 1,683 people, and in the ten years prior to mid-2020, the population grew by 30,725. Compare population by area.
West Northamptonshire's population growth rate between mid-2019 and mid-2020 was 0.4%, which is 0.5% lower than the average population growth rate in West Northamptonshire for the ten years prior to mid-2020 (0.9%).
West Northamptonshire covers an area of 1,377 square kilometres (532 square miles) and has a population density of 295 people per square kilometre (km2), based on the latest population estimates taken in mid-2020. That figure has increased by 22 people per km2 over the past decade.
Between mid-2019 and mid-2020, net internal migration out of West Northamptonshire was 1,542, and net international migration into West Northamptonshire was 2,447.
West Northamptonshire's fertility rate (the total number of children that would be born to the average woman in West Northamptonshire if she were to live to the end of her child-bearing years) of 1.81, and birth rate (the number of live births per thousand of population per year) of 2.1, led to population increases of 846 during the year, and West Northamptonshire's death rate or mortality rate (the number of deaths per thousand of population per year) of 2.1 resulted in a 836 population decrease. In total, a net 10 person natural increase.
During the past decade, internal migration has fallen from a net inflow of 350 in 2011 to a net 1,542 outflow. International migration has risen from a net inflow of 1,162 in 2011 to an inflow of 2,447 in 2020.
The natural increase in population, due to births and deaths, has fallen from an annual net increase of 208 people in 2011 to 10 in 2020.
International migration was the largest driver of population change over the past decade, representing circa 102% of the total change in population (over 100% as other factors were net outflows).
West Northamptonshire's population, population density, and population growth rate, over the past decade.
Figures reported by the ONS in 2021.
West Northamptonshire's forecast, population density, and population growth rate, over the next twenty years. Figures reported by the ONS in 2018.
The population of West Northamptonshire is forecast to be 94,057 in 2025 and 99,262 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