Populations Past allows users to create and view maps of different demographic measures and related socio-economic indicators every 10 years between 1851 and 1911. These include fertility, childhood mortality, marriage, migration status, household compositions, age-structure, occupational status and population density. Brief explanations of each measure are included, indicating how they are calculated and explaining how they relate to other measures.
Users can zoom in to a particular area on the map to compare side by side maps of different times or measures. When large areas are viewed the data for England and Wales are displayed in Registration Districts (RDs), but the display changes to Registration Sub-Districts (RSDs) when the users zoom in. Scottish data are only available at RD level, although the team have created smaller subdivisions for the larger cities. The data for the smallest geographical units underlying the maps can be downloaded using an 'export' button.
The website covers England, Wales and Scotland.
