Health & Population · Glossary
Urban population (% of total population)
SP.URB.TOTL.IN.ZS
Definition
Urban population refers to people living in urban areas as defined by national statistical offices. The data are collected and smoothed by United Nations Population Division.
Methodology for Health & Population indicators
Health and population indicators come from national vital-registration systems, demographic and health surveys, and modeling by the UN Population Division and WHO. Mortality and morbidity estimates are often modeled rather than directly observed in lower-capacity statistical systems, which means some figures are interpolations between survey years. Life expectancy is a "period" measure based on current age-specific mortality, not a forecast of how long someone born today will actually live.
How to interpret
- Always check the unit and reporting year before comparing values across countries.
- NULL or "Not available" means the World Bank did not publish a value — we never estimate.
- Year-over-year changes can be driven by methodology updates, not just real economic shifts.
Related indicators in Health & Population
- Adolescent fertility rate (births per 1,000 women ages 15-19)
- Population ages 0-14 (% of total population)
- Population ages 65 and above (% of total population)
- Net migration
- Fertility rate, total (births per woman)
- Population, total
- Life expectancy at birth, total (years)
- Birth rate, crude (per 1,000 people)