World Pop: Age and Sex Structures

WorldPop is an open-access platform providing high-resolution spatial demographic data, population datasets, and geospatial tools to support evidence-based decision-making in public health, disaster risk reduction, environmental management, urban planning, and sustainable development. The platform produces gridded population estimates, population density maps, age and sex distributions, births, pregnancies, migration, urbanization, and other demographic datasets using census data, Earth observation, machine learning, and geospatial modelling. Data are available globally, with a particular focus on low- and middle-income countries, and can be accessed through downloadable datasets, APIs, and interactive applications.

For air quality management, WorldPop provides an essential population exposure dataset that can be integrated with air pollution models, satellite observations, and health impact assessment tools to estimate the populations affected by air pollution and quantify associated health burdens. The platform supports exposure assessment, emissions analysis, environmental justice studies, and policy evaluation by enabling users to combine high-resolution demographic data with environmental datasets. Its open-access resources are widely used by governments, researchers, international organizations, and development partners for health impact assessments, climate adaptation, and environmental planning.