Knowing the demographic composition and key socioeconomic and health components of a population form the basis of key questions of researchers, policy-makers, planners, politicians and industry. Population composition and projections form crucial information that shapes far-reaching and core decisions ranging from where to plan future schools, health care and hospitals, transportation, housing, anticipating voting patterns, establishing industrial sites, anticipating future market trends to shaping pension systems. The report describes the core demographic, socioeconomic, health and lifestyle variables within the Mapineq link database and provides examples of previous studies that have leveraged cross-national and fine-grained geospatial data to study the life course. The target audiences are media, policy makers, researchers and advanced data scientists.