Sub-Saharan Africa - Population and Urbanization

2.1 Population Overview

  • Population: Approximately 1.3 billion (around 16% of the world's total).
  • Population Growth Rate: Highest among world regions.
  • Population Structure: Predominantly young.
  • Projected Growth: Expected to triple by 2100, reaching 30-35% of the world's population.
  • Net Migration: Immigrant and Emigrant numbers are approximately equal at 0.

Projected Growth

  • Sub-Saharan Africa's share of the world's total population is expected to rise significantly:
    • 2025: 15-16%
    • 2100: 30-35%

Demographic Transition Model

  • Stage 1: High birth and death rates, natural decrease.
  • Stage 2: High birth rate, falling death rate, very rapid natural increase.
  • Stage 3: Falling birth rate, slowly falling death rate, natural increase slows.
  • Stage 4: Low birth and death rates, stable or slow increase.
  • Stage 5: Very low birth rate, low death rate, stable or slow decrease.

Population Pyramid

  • Visual representation of population distribution by age and sex (examples: Nigeria and South Africa in 2019).

Top 10 African Countries by Total Population (2024)

  • Lists countries like Nigeria, Ethiopia, Egypt, DR Congo, Tanzania, South Africa, Kenya, Sudan, Uganda, and Algeria.
  • Includes data on population size, yearly change, density, land area, net migrants, fertility rate, median age, and urbanization percentage.

Population Density

  • High Density Areas:
    • West Africa
    • Ethiopia Plateau
    • Around Lake Victoria
    • Southeastern Africa
    • Along the Eastern Africa Rift Valley

Lake Victoria

  • Rain Basin: Sensitive to precipitation levels.
  • Nalubaale Dam: (Owens Falls on the White Nile) Impacts lake water levels.
  • Faces pollution challenges.
  • Shared by multiple countries.

Namibia

  • Sparsely populated due to desert and semiarid plains.

2.2 Urbanization

  • Urbanization Rate: 43% in 2023 (according to The World Bank).
  • World Average: 57%.
  • Rate compared to other regions: Higher than only South Asia.
  • Recent Trend: Rapid rural-to-urban migration.

Cities by Population (2025)

  • Major cities:
    • Cairo, Egypt: 23,074,200
    • Kinshasa, DR Congo: 17,778,500
    • Lagos, Nigeria: 17,156,400
    • Luanda, Angola: 10,027,900

Growth of African Cities

  • Presents percentage increase forecasts from 2010-2025.
  • Highlights growth in cities like Dar es Salaam, Nairobi, Kinshasa and Luanda.

Rapid Urbanization

  • Presents both opportunities and challenges.