Dataset - data.gov.uk

Ward 1981 to Ward 1991 (April 1991) Lookup in EW

This file is a lookup between 1981 wards and 1991 wards in England and Wales as at 1st April 1991. (File size: 3MB).Field Names - WD81CD, WD81NM, LAD81CD, LAD81NM, WD91CD,...
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You can also access this registry using the API (see API Docs).