Study summary

Social and demographic context

The four-province influence area had approximately 19.7 million residents in 2021/22, equal to 23.5% of the national population that year. The immediate influence area covered seven counties and more than 1.43 million residents.

Public summary

Key findings

  • The four-province influence area had approximately 19.7 million residents in 2021/22, equal to 23.5% of the national population that year.

  • The immediate influence area covered seven counties and more than 1.43 million residents.

  • Population is unevenly distributed, with Tehran holding the largest share; labour and market planning must remain package-specific.