What is ONS coding system?
The '''ONS coding system''' is a system used in the [[United Kingdom]] for dealing with [[census]] and other [[Statistics|statistical]] data. It is used by the [[Office for National Statistics]] as a way to label each area of [[England]] and [[Wales]]. It is also used for parts of [[Northern Ireland]]. The system uses a code for the larger census areas, [[county|counties]] and districts. It then breaks those areas down into smaller areas within the larger areas. Each of the smaller areas get a code that is based on the larger area. Areas are divided in this way until they get to the smallest size used for census data. An area must have at least 40 [[family|households]], but they try to not divide an area into a size smaller than 100 households. ==Example== {| border=1 cellpadding=2 |- |12||Cambridgeshire county |- |12UB||Cambridge district |- |12UBGA||Petersfield Ward |- |12UBGA0001||Gwydir Street (north of junction with Hooper St) |} == Other websites == *[https://geoportal.statistics.gov.uk ONS Open Geography Portal] *[https://www.ons.gov.uk/methodology/geography/ukgeographies/censusgeographies/census2021geographies ONS Census 2021 Geographies] {{Europe-stub}} [[Category:Geography of the United Kingdom]] [[Category:Geocodes]]