The reason why Saudi Arabia has a large foreign population

1. Saudi Arabia is a rich country, and foreigners around it are willing to work in Saudi Arabia, because there are more job opportunities there and the pay is higher than in their own country. Foreigners coming to Saudi Arabia are basically engaged in service industry and construction industry.

2. Saudi citizens are relatively rich and unwilling to engage in service industry or manual labor. Therefore, this part of the employed population needs to be imported from neighboring countries, especially workers from India and Pakistan, Bangladesh and Sri Lanka.

3. Women in Saudi Arabia are influenced and bound by traditional social concepts and cannot go out to work openly. Therefore, there are more female employees and foreigners in many service industries.