Atlanta is home to the fastest growing millionaire population in the United States, according to research firm Claritas.

The number of households in Atlanta with $1 million or more in investable assets (not including primary residence and consumable goods) will increase 68.8% through 2011, to more than 102,000 households. Nationwide, the millionaire population grew by 6.8% in 2005, according to the World Wealth Report from Merrill Lynch and Capgemini.

Rounding out the top five cities for new millionaires are…

• Dallas-Fort Worth (68.5%)
• Houston (67.6%)
• Sacramento (64.4%)
• Denver (64.2%)

Notice that 3 out of 5 top cities are located in the South.