18. Seoul
Number of billionaires: 30
Billionaires per capita: 3.00 per 1,000,000 people
South Korea is home to Samsung among other tech giants, and its chairman, Lee Kun-Hee is the richest man in the country.

Lisa-Lisa / Shutterstock.com
Number of billionaires: 30
Billionaires per capita: 3.00 per 1,000,000 people
South Korea is home to Samsung among other tech giants, and its chairman, Lee Kun-Hee is the richest man in the country.
Lisa-Lisa / Shutterstock.com