This Statistical Compendia is based on research supported by the Wales Institute of Social & Economic Research, Data & Methods (WISERD). Those who wish to use this data should cite its source as: Davies R., Bryson A. and Jones S. (2022) Geographical Variations in Trade Union Membership – 2000-2021, Cardiff: Wales Institute of Social & Economic Research, Data & Methods (WISERD) , Cardiff University.

This compendia provides easier access to the data contained within that Research Note and which is also displayed via the UnionMaps service. The Labour Force Survey and the Annual Survey of Hours and Earnings were accessed via the Secure Lab at the UK Data Service whose support is gratefully acknowledged. This work uses research datasets which may not exactly reproduce National Statistics aggregates. The use of these data does not imply the endorsement of the Office for National Statistics, the Department for Business, Energy and Industrial Strategy or the UK Data Service at the UK Data Archive in relation to the interpretation or analysis of the data. WISERD is a collaborative venture between the Universities of Aberystwyth, Bangor, Cardiff, South Wales and Swansea.

This resource is based on work undertaken in relation to the WISERD Civil Society Research Programme Changing perspectives on Civic Stratification and Civil Repair funded by the ESRC (ES/S012435/1).