Geography (AKU-GEO)
Topic 3 of 7Aga Khan Board

Human Geography & Urbanisation

Population distribution, rural-urban migration and urban challenges

Population distribution = how people are spread across an area. Population density = people per km².


Pakistan's population is unevenly distributed:

  • Dense: Punjab (especially central Punjab — Lahore, Faisalabad, Gujranwala belt), urban Sindh (Karachi)
  • Sparse: Balochistan (44% of land area, 5% of population), northern mountains

  • Factors affecting distribution:

  • Physical: flat fertile land (Punjab plains), water availability, mild climate
  • Human: jobs, transport links, historical settlement

  • Urbanisation: Growing proportion of people living in cities.

    Pakistan is 37% urban (2024) — rising fast. Karachi (~22 million) is the 7th largest city in the world.


    Causes of rural-urban migration:

  • Push factors: agricultural job losses, drought, poverty, flooding, lack of services
  • Pull factors: employment, education, healthcare, better infrastructure

  • Urban challenges in Pakistan:

  • Housing: Katchi abadis (informal settlements/slums) house 50%+ of Karachi's population
  • Traffic congestion: poor public transport, rapid car ownership increase
  • Water supply: Karachi receives less than half its needed daily water
  • Waste management: open dumping, inadequate collection
  • Air pollution: industrial + vehicular emissions
  • Key Points to Remember

    • 1Population density = people per km²; Punjab most dense
    • 2Pakistan 37% urban; Karachi ~22 million people
    • 3Rural-urban migration: push (poverty) + pull (jobs)
    • 4Urban challenges: housing, water, traffic, pollution

    Pakistan Example

    Karachi's Katchi Abadis — Urbanisation and Inequality

    Karachi's Orangi Town is the largest informal settlement in Asia — home to over 2.4 million people. Residents built their own water pipes, drainage, and schools (Orangi Pilot Project — a famous development case study). AKU Geography papers regularly use Karachi as an urbanisation case study, asking about push-pull migration factors and challenges of rapid urban growth.

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