Rental vacancy rate: 17.4%
Homeowner vacancy rate: 2.3%
Houston is home to the country’s second-highest rate of rental vacancies at a staggering 17.4 percent. The rate has been relatively high in the past three years, however, and has fluctuated between 18.6 percent and 13.1 percent over that time. Homeowner vacancies in the city have fared much better, currently below 2010 levels and down from the first quarter of 2011.