Measuring the changing pattern of ethnic segregation in England and Wales with Consumer Registers

Analysis of changing patterns of ethnic residential segregation is usually framed by the coarse categorisations of ethnicity used in censuses and other large-scale public sector surveys and by the infrequent time intervals at which such surveys are conducted. In this paper, we use names-based classification of Consumer Registers to investigate changing degrees of segregation in England and Wales over the period 1997–2016 at annual resolution. We find that names-based ethnic classification of the individuals that make up Consumer Registers provides reliable estimates of the residential patterning of different ethnic groups and the degree to which they are segregated. Building upon this finding, we explore more detailed segregation patterns and trends of finer groups at annual resolutions and discover some unexpected trends that have hitherto remained unrecorded by Census-based studies. We conclude that appropriately processed Consumer Registers hold considerable potential to contribute to various domains of urban geography and policy.