Population Density and Distribution

  • Learning Goals

    • Identify factors influencing human population distribution at different scales.
    • Explain effects of population distribution/density on society and the environment.

  • Essential Vocabulary

    • Demography: Study of human populations.
    • Population Density: Number of people per unit of area.
    • Population Distribution: Pattern of where people live.

  • World Population (2018)

    • Map shows population distribution; 1 square = 500,000 people.
    • 7.633 billion people residing globally.

  • Population Density (2023)

    • Representation of people per km² of land area.

  • Factors Affecting Population Distribution:

    • Economic Factors:

    • Level of Development: Higher economic development attracts populations.

    • Infrastructure: Better infrastructure leads to increased populations.

    • Employment Opportunities: More jobs attract people.

    • Natural Resources: Abundant natural resources draw larger populations.

    • Social Factors:

    • Safety: Areas with lower crime rates attract more people.

    • Religious Sites: Proximity to sacred sites can increase density.

    • Rights and Freedoms: Areas with more rights attract larger populations.

    • Cultural Significance: Areas with historical value attract people.

    • Political Factors:

    • Public Services: Better services attract more residents.

    • War and Conflict: Conflict areas tend to have lower populations.

    • Government Installations: Government presence can increase density.

    • Environmental Factors:

    • Natural Features: Flat areas with resources attract denser populations.

    • Climate: Moderate climates attract higher populations.

    • Fertile Land: Suitable land for agriculture supports higher density.

  • Impacts of Population Density

    • High Density:

    • Economic growth due to availability of workers.

    • Cultural clashes from diversity.

    • Strain on housing and public transportation.

    • Challenges in providing public services and need for new laws.

    • Issues with carrying capacity and resource depletion.

    • Low Density:

    • Smaller workforce leading to economic decline.

    • Uneven development due to resource allocation.