This dataset contains regional data on population by age and sex, average population, regional surface, mobility and population density with a geographic coverage of TL3 which corresponds to the Territorial Level 3. The dataset is broken down into 3 set of variables which are population and area, population by age groups and lower level (Territorial Level 3) consisting of about 1709 micro-regions. The dataset is broken down into 3 set of variables which are population and area, population by age groups and mobility.