The city of Leicester (UK) has seen large socio-demographic changes over the past century, gaining complex social, economic and multicultural geographies. Such changes are reflected in the data collected through the census and can be illustrated by developing a temporal geodemographic classification. This paper presents the results of a Master's dissertation project aimed at developing a temporal geodemographic classification for Leicester's urban area, including the Leicester Local Authority District, as well as the Oadby and Wigston Local Authority District, analysing its changing socio-economic structure over three censuses.