National statistical offices often produce estimates and characteristics of a population. These statistics are a vital source of information for decision-makers throughout the government, the private sector, and civil society.

An estimate is a calculation of the size or distribution of a population or another characteristic of the population for the present or past, while a population projection is a mathematical equation that calculates the estimated growth rate or change of future populations based on current populations.

Policymakers and other data users often require accurate information between census data releases, which in most countries occur every ten years. Although a full population count only occurs during a census, statistical methods and tools are often used to produce regular, up-to-date estimates of a population.

Population estimates can describe the total population size as well as demographic characteristics such as age, sex, or education level.

Population estimates are dependent on the demographic components of change: mortality, fertility, and migration. Estimates of mortality, fertility, and migration are derived from data available from censuses, surveys, registration systems, and other administrative records.

Estimates and projections are calculated similarly. However, estimates employ observed data and hypotheses of demographic change when data are incomplete.

The Census Office helps countries improve their national statistical systems by engaging in statistical capacity building activities that aim to enhance competencies in several areas in sustainable ways.

Course Outline

Topics in this course include:

• Statistical Capacity Building
• CSPro Processing Census and Survey Data
• Population Census
• Demographic and Economic Analysis
• Socioeconomic and Demographic Surveys
• Geographic Information Systems
• Population Estimates and Projections
• The Tool for Assessing Statistical Capacity (TASC)