This information is based on the vacancy rate of unoccupied homes. As of the 2010 Census, there were approximately 15 million vacant housing units in the country, with an 11.4 percent gross vacancy rate nationwide. Check out the full report. So who are the 10 emptiest cities?

1. Tucson, Arizona - Rental vacancy rate: 15.9%; Homeowner vacancy rate: 6.8%
2. Indianapolis, Indiana - Rental vacancy rate: 13.5%; Homeowner vacancy rate: 5.2%
3. Toledo, Ohio - Rental vacancy rate: 19.3%; Homeowner vacancy rate: 3.6%
4. Memphis, Tennessee - Rental vacancy rate: 13.5%; Homeowner vacancy rate: 4.0%
5. Atlanta, Georgia - Rental vacancy rate: 11.8%; Homeowner vacancy rate: 5.4%
6. Baton Rouge, Louisiana - Rental vacancy rate: 13%; Homeowner vacancy rate: 3.9%
7. Dayton, Ohio - Rental vacancy rate: 10.7%; Homeowner vacancy rate: 4.7%
8. Detroit, Michigan - Rental vacancy rate: 17.2%; Homeowner vacancy rate: 2.4%
9. Houston, Texas - Rental vacancy rate: 17.4%; Homeowner vacancy rate: 2.3%
10. Kansas City, Missouri - Rental vacancy rate: 11%; Homeowner vacancy rate: 3.7%

These are great areas to start a property management franchise.