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Census 2001 - CAS Sectors
A 2001 Census Area Statistic (CAS) sector was one of 2 special postcode sectors created for 2001 Census Output. A postcode sector comprises all the unit postcodes that have the... -
Census 2001 - CAS Wards
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...