Summary

Description

On 17th November 2011 the Office for National Statistics (ONS) as part of their Migration Statistics Improvement Programme (MSIP) released their improved methodology for producing local authority long-term migration estimates within England and Wales. This _Update_ presents a brief overview of the improved migration methodology adopted by the ONS in respect to its impact on migration and population estimates. * Improvements to the immigration distributional methodology has impacted on both the estimated number of migrants and total population between 2006 and 2010. * The number of immigrants in London as a result is estimated to have risen by 129.8 thousand (2006 to 2010) compared to previous figures. * Ten London boroughs are in the top 20 local authorities for upward indicative revisions in their population estimates. Open the report [here](https://s3-eu-west-1.amazonaws.com/londondatastore-upload/intelligence-update-12-2012-migration.pdf) or Download the data [here](https://s3-eu-west-1.amazonaws.com/londondatastore-upload/update-12-2012-MSIP-data.xls)