According to AfrAsia Bank and New World Wealth, Accra, the capital city of Ghana is the 10th wealthiest city in Africa with over 2000 millionaires. Highlights of the report; Johannesburg: Total wealth held in the city amounts to US$245 billion. Home to 18,200 millionaires (HNWIs), 970 multi-millionaires and 2 billionaires. Our figures for Johannesburg include Sandton. Major sectors in the city include: financial services (banks, accountancies, insurance), professional services (law firms), construction, telecoms and basic materials. Cairo: Total wealth held in the city amounts to US$140 billion. Home to 8,900 millionaires, 480 multi-millionaires and 5 billionaires. Major sectors in the city include: real estate & construction, financial services and basic materials. Cape Town: Total wealth held in the city amounts to US$135 billion. Home to 8,200 millionaires, 440 multi-millionaires and 2 billionaires. Major sectors in the city include: real estate, financial services (f...