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Northamptonshire Analysis
The authority on Northamptonshire statistics

Revised ONS Population Estimates

22 March 2018

Today the Office for National Statistics released revised Mid-Year Estimates (MYEs) for the years 2012 to 2016 inclusive. These are available at borough/district geography and above.

I have amended the Key Facts stat on the Northamptonshire Analysis Home Page, however, the revised MYEs are NOT yet loaded to the dataviews within the Population and Census theme. The dataviews still show the original mid year estimates. The revised estimates will be uploaded after Easter (sorry for the delay, annual leave beckons!).

Until then, please see the ONS Revised 2012-2016 Mid Year Estimates : Northamptonshire Summary spreadsheet where I have downloaded the county's data from the ONS Population Estimates Revision Tool. This looks at the difference between the revised ONS MYEs and the original figures released for those years for the county and the boroughs/districts. The revised estimates for each year for the county and the seven boroughs/districts are also available in the spreadsheet.

The increases and reductions in the total population are as follows :
Northamptonshire : reduction : -676 (-0.1%). Total population now stands at 732,452 persons.
Corby : increase : 108 persons (0.2%)
Daventry : reduction : -218 persons (-0.3%)
East Northamptonshire : increase : 383 persons (0.4%)
Kettering : reduction : -55 persons (-0.1%)
Northampton : reduction : -975 persons (-0.4%)
South Northamptonshire : reduction : -95 persons (-0.1%)
Wellingborough : increase : 176 persons (0.2%).

What is evident from the detailed figures is that the ONS have been underestimating both international emigration and to a lesser extent international immigration in the county during 2015 and 2016, which is something we expressed concern about following analysis of the last Local Area Migration Suite against the National Insurance Number allocations.

If you need the ONS's Methodology Guide or their QMI sheet they are available here.

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