A 2011 LC sector was one of 2 special postcode sectors created for 2011 Census Output. A postcode sector comprises all the unit postcodes that have the same identifier except for the last two characters. Special postcode sectors are created for census output to ensure sectors conform to a minimum threshold and do not cross Council Area boundaries. LC sectors have a minimum threshold of 20 households and 50 persons, the same minimum threshold as Census Output Areas. There are 1,012 LC sectors. Corrections and Revisions Revision to Local Characteristic (LC) sector boundaries at boundary between East Renfrewshire and Renfrewshire Council areas. (7 October 2013) LC Sectors S29000556, S29000558, and S29000870 have been amended following a correction to Ordnance Survey BoundaryLine.
Local Administrative Units (LAU) - Level 1 are part of the Nomenclature of Territorial Units for Statistics (NUTS) hierarchical classification of UK areas created by the European Office Statistics (Eurostat) in order to produce regional statistics which are comparable across the European Union. There are 3 NUTS levels moving from larger to smaller areas, NUTS 1 is Scotland, NUTS 2 divides Scotland into 4 areas and NUTS 3 divides Scotland into 23 areas. NUTS areas are stable and are only amended periodically. NUTS 4 and NUTS 5 have been superseded by Local Administrative Units (LAU), which were introduced in July 2003 as there was a requirement for statistics at local level which were compatible with NUTS. LAUs are amended to reflect administrative boundary changes. LAU boundaries were created by National Records of Scotland (NRS) from existing geographies. LAU Level 1 (formerly NUTS level 4) are Council Areas, Local Enterprise Companies (LECs) or a combination of both. Scotland is covered by 41 LAU1 areas.
This dataset shows the 2011 Census Output Areas (OAs) – Part Removed. This dataset contains the polygons which were removed in order to make the OA whole. The area of these polygons is included in the area figure for the 2011 OA. There were 349 non contiguous census output areas not caused by water. A decision was made to delete one of the polygons to make the OA whole. This was purely a cosmetic exercise. The part to be removed did not contain the master postcode and in the majority of the cases it was the smaller of the polygons but in a few instances it may have been the large part simply because the smaller part was more dense and master postcode assigned to it. Revisions and Corrections Revision to 2011 Output Area codes (13 September 2013) An anomaly was discovered in the 2011 Census Output Area (OA) codes which were published on 15 August 2013. The anomaly meant that, whilst all the current 2011 Census OA codes were unique, they did not always run in sequential order by council area. We decided to replace the codes with new ones that start at S00088956 and end with S00135306. Correction to 2011 Output Area boundaries (7 October 2013) Ten boundaries have been added to the dataset following amendments in line with the cosmetic exercise/spatial improvement described earlier
A 2001 Census Area Statistic (CAS) ward is one of 2 special wards created for 2001 Census Output. These are both created by aggregating output areas and are only best-fit for electoral wards. Using master postcodes, OAs are assigned to electoral wards. The resulting 1,222 aggregations are denoted CAS wards and will fall within a council area boundary and meet a threshold of 20 households and 50 persons.
A 2001 Standard (ST) ward is one of 2 special wards created for 2001 Census Output. These are both created by aggregating output areas and are only best-fit for electoral wards. Where 2001 Census Area Statistic (CAS) wards fall below the ST thresholds (400 households and 1,000 persons) they are merged with neighbouring CAS wards to exceed the threshold. It is also necessary to make a few adjustments to ST wards so as to remove and ‘slivers’ below ST threshold created by differencing ST wards and ST sectors. The processes result in 1,176 ST wards.
This is the set of postcode boundaries used for 2011 census outputs. The postcode boundaries for census were originally frozen in January 2011 but have since been re-aligned to Ordnance Survey 2011 BoundaryLine for the purposes of producing census outputs. The re-alignment work ensures consistency of approach with the Office of National Statistics (ONS) and the Scottish Government (SG). The improvements made to the dataset as a result of re-alignment did not affect any existing higher area assignments in the Postcode Index although there will be some very minor differences in the boundaries if compared against the 2011_1 set of postcode boundaries already published. The dataset contains 145,690 postcode polygons. Revisions and Corrections Revision to postcode boundaries at boundary between East Renfrewshire and Renfrewshire Council areas (7 October 2013) Postcodes PA2 7DA, PA2 7TX, PA2 8TY, G53 7TH, G78 1HJ, and G78 1TJ have been amended following a correction to Ordnance Survey BoundaryLine.
A 2001 Standard (ST) sector is one of 2 special postcode sectors created for 2001 Census Output. A postcode sector comprises all the unit postcodes that have the same identifier except for the last two characters. Special postcode sectors are created for census output to ensure sectors conform to a minimum threshold and do not cross Council Area boundaries. ST sectors have a minimum threshold of 400 households and 100 persons. There are 859 ST sectors.
The geography of Scotland comprises the mainland plus many islands. Some of these islands are inhabited and through time their inhabited/uninhabited status can change. The prime reason for identifying inhabited islands was to aid the delivery and collection of Census questionnaires. If an island is inhabited, then Royal Mail will allocate postcodes to the island’s addresses. Many of the larger islands, with relatively large populations, will have postcodes that cover only the island. However, some of the smaller inhabited islands have very few households and in some cases the postcode for these island addresses is the same as that of some households on the mainland. In order to ensure that Census questionnaires are collected and delivered correctly, it is important that both parts of the postcode (the island addresses and the mainland addresses) are contained within the same Census Enumeration District. The identification of inhabited islands helps with the creation of meaningful Census Enumeration Districts. In addition to the enumeration aspect of the census, there has always been an interest in the statistics associated with Scotland’s inhabited islands and this dataset helps ensure that they are all identified. This “Inhabited Island” dataset was not rigorously maintained in the period between 2010 and 2012 and in January 2013 the dataset was re-established with some revisions.
NRS first created Output Areas (OAs) for the 1991 Census to allow comparability with small area statistics output from 1971 and 1981. NRS used postcodes to plan 1981 Census enumeration districts and 1991 postcode based OA generally fell within 1981 ED. 1971 small area statistics were retabulated for 1981 Enumeration Districts thus provided an degree on continuity over 3 censuses. OAs are the lowest level for which small area statistics for the 1991 Census are available. For confidentiality purposes each OA has at least 16 households and 50 usual residents. There are 38,254 Census 1991 OAs in Scotland. Of the 38,254 1991 output areas, 38,098 have polygons, the remaining 156 are special output areas. Revisions and Corrections Correction to 1991 Output Area boundaries An anomaly was discovered in the 1991 Output Area boundaries where the boundaries for Output Areas 6341DX13 and 6341DX16B were not following the postcodes that they were built up from.
This is the set of postcode boundaries used for 2001 census outputs. The postcode boundaries for census were originally frozen in January 2001 for the purposes of producing census outputs. The dataset contains 139,045 postcode polygons.