OA (2011) to OA (2021) to Local Authority District (2022) Exact Fit Lookup in EW (V3)

<span style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>This is an exact-fit lookup file between Output Areas as at December 2011 and Output Areas as at December 2021 and Local Authority Districts as at December 2022 in England and Wales. This product has been provided with a 'change indicator' field, that define the lookup between 2011 and 2021 OA. This field indicates which output areas / super output areas have changed between 2011 and 2021. </span><div style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><font color='#000000' style='font-family:inherit;'><span style='font-family:inherit; font-size:17px;'><br /></span></font></div><div style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif;'><font color='#000000'><span style='font-size:17px;'>The following corrections have been made:</span></font></div><div style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><font color='#000000' style='font-family:inherit;'><span style='font-family:inherit; font-size:17px;'>2011 OA - E00057321 - now E00187061 and E00187072</span></font></div><div style='font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;'><font color='#000000' style='font-family:inherit;'><span style='font-family:inherit; font-size:17px;'>2011 OA - E00057468 - now E00187031, E00187150 and E00187039<br /></span></font><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'><br /></span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>There are four designated categories to describe the changes, and these are as follows:</span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'><br /></span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>U - No Change from 2011 to 2021. This means that direct comparisons can be made between these 2011 and 2021 OA. </span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>S - Split. This means that the 2011 OA has been split into two or more 2021 OA. There will be one record for each of the 2021 OA that the 2011 OA has been split into. This means direct comparisons can be made between estimates for the single 2011 OA and the estimates from the aggregated 2021 OA.</span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>M - Merged. 2011 OA have been merged with another one or more 2011 OA to form a single 2021 OA. This means direct comparisons can be made between the aggregated 2011 OAs’ estimates and the single 2021 OA’s estimates.</span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>X - The relationship between 2011 and 2021 OA is irregular and fragmented. This has occurred where 2011 OA have been redesigned because of local authority district boundary changes, or to improve their social homogeneity. These can’t be easily mapped to equivalent 2021 OA like the regular splits (S) and merges (M), and therefore like for like comparisons of estimates for 2011 OA and 2021 OA are not possible.  </span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'><br /></span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>Field Names – OA11CD, CHNGIND, OA21CD, LAD22CD, LAD22NM, LAD22NMW </span></div><div style='font-family:inherit;'><span style='box-sizing:border-box; max-width:100%; color:rgb(0, 0, 0); font-size:17px;'>Field Types – Text, Text, Text, Text, Text, Text</span></div><div style='font-family:inherit;'><span style='color:rgb(0, 0, 0); font-size:17px;'>Field Lengths – 9, 1, 9, 9, 35, 24</span></div></div>

Tags: 2021, 2021_Census, Census Lookups, DEC_2021, England and Wales, LAD, LUP_CEN, LUP_EXACT_OA11_OA21, LUP_OA_2021, LUP_OA_2021_LAD, Local Authority, Local Authority District, Local Authority Districts, Output Area, Output Areas, Version 2
Organization: Office for National Statistics