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2011

2011 Census estimates for all geographies (except national parks) will be best–fitted from output areas in line with the Geography Policy for National Statistics.

The following products show 2011 OAs best-fitted to a number of output geographies:

Best fit 2011 output area (OA) lookup files

Date last released 

2011 output areas (OA) to 2011 wards (with best fit percentage indicator)

January 2013

2011 output areas (OA) to 2011 parishes (England) and communities (Wales)

January 2013

2011 output areas (OA) to current counties in England

November 2012

2011 output areas (OA) to former counties in England

November 2012

2011 output areas (OA) to regions in England

November 2012

2011 output areas (OA) to countries

November 2012

2011 output areas (OA) to 2010 Westminster parliamentary constituencies and European electoral regions (with best fit percentage indicator)

January 2013

Output areas (OA) to 2011 primary care organisations (PCO) in England/local health boards (LHB) in Wales and Strategic Health Authorities (SHA) in England (with best fit percentage indicator)

January 2013

Output areas (OA) to 2011 National Assembly for Wales (NAW) constituencies (with best fit percentage indicator)

January 2013

Output areas (OA) to 2010 local administrative units (LAU) level 1 and 2 and nomenclature of units for territorial statistics (NUTS) level 1, 2 and 3

January 2013

2011 output areas (OA) to 2011 built-up area sub-divisions, built-up areas, local authority districts and regions

June 2013

2011 built-up areas to 2011 local authority districts

June 2013

2011 built-up areas to 2011 regions

June 2013

2011 built-up area sub-divisions to 2011 built-up areas

June 2013

2011 output areas (OA) to 2011 urban/rural definition To be confirmed
2011 output areas (OA) to 2011 enumeration postcode sectors (with best fit percentage indicator) January 2013

Exact-fit 2011 output area lookup files

Date last released

2011 OA to 2011 LSOA, MSOA and LAD

November 2012

2011 OA to 2011 workplace zone (WZ) and LAD

January 2013

Open Geography Portal

The above lookup files can be downloaded as zipped csv files from ONS's Open Geography Portal.

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