An important reason for large pockets of urban poor is rapid migration from rural areas to cities without corresponding job creation and affordable housing , which pushes migrants into slums and informal settlements.

Key reason in simple terms

  • Large numbers of people move from rural areas to big cities hoping for better jobs, but cities often cannot provide enough secure, formal employment.
  • Because decent housing is too expensive and land is limited, many of these migrants are forced to live in overcrowded slums or informal settlements with very poor services.

How this creates “pockets” of urban poor

  • When many low‑income families cluster in the same neglected neighborhoods, poverty becomes geographically concentrated, creating visible “pockets” of urban poor.
  • Weak urban planning and failure to extend basic services (water, sanitation, transport) to these areas deepen deprivation and keep these communities trapped in poverty.

Other contributing factors

  • Lack of skills training and mismatch between workers’ abilities and the modern urban job market limit income opportunities for the urban poor.
  • High cost of living in cities (especially housing, food, and transport) means even people who are working can remain poor and excluded from better neighborhoods.

In many exam-style questions, the best option that captures this idea is usually the one mentioning rural–urban migration plus inadequate jobs and housing as the central reason for large pockets of urban poor.

Bottom line: the most important reason is uncontrolled rural–urban migration combined with insufficient employment and affordable housing, which leads to concentrated slums and large pockets of urban poverty.

Information gathered from public forums or data available on the internet and portrayed here.