This zip file contains the Standard Area Measurements (SAM) for the 2011 Census areas in England and Wales as at 31 December 2011 in CSV and XLSX format. This includes the Output Areas (OA), Lower Layer Super Output Areas (LSOA) and Middle Layer Super Output Areas (MSOA). All measurements provided are ‘flat’ as they do not take into account variations in relief e.g. mountains and valleys. Measurements are given in hectares (10,000 square metres) to 2 decimal places. Four types of measurements are included: total extent (AREAEHECT), area to mean high water (coastline) (AREACHECT), area of inland water (AREAIHECT) and area to mean high water excluding area of inland water (land area) (AREALHECT). The Eurostat-recommended approach is to use the ‘land area’ measurement to compile population density figures.Click the Download button to download the file