Demographers analyze large datasets to understand how populations grow, shift, and change over time. Their work includes developing demographic models, projecting population trends, evaluating public policy impacts, and identifying risks related to aging, migration, fertility, and mortality. They work with governments, research institutes, UN agencies, and NGOs that rely on accurate demographic projections to guide planning in health, education, labor markets, and social protection. Strong statistical, analytical, and communication skills are essential. Demand is rising globally due to the need for population forecasting, climate-related migration analysis, and evidence-based policy development.