| #Trendlines
Demographics
Welcome to Trendlines, where we explore issues shaping the world and their impacts on Canada. Our demographics section explores shifting population trends from growth rates and age distribution to migration and urbanization. This section breaks down key demographic data from credible sources to show how countries are responding to the most pressing issues facing people and places.
Key Indicators
Population (2023)
Population growth (2023)
Life expectancy at birth (2023)
How is global population growth reshaping the world—and Canada?
See how global population surged from 3 billion in 1960 to over 8.14 billion by 2024 and how Canada’s demographic future hinges on immigration from fast-growing regions.
Which country has the highest life expectancy?
In 2023, Monaco had the highest life expectancy at birth—86.3 years—while Nigeria ranked lowest at 54.5. Get global context with insights on gender and regional gaps.
What is the largest city in the world by population?
Tokyo tops the global rankings with an urban agglomeration of about 37 million people (2025). Discover the world’s most populous megacities by metro size.