An increase of the death rate for mobile home residents in tornadoes was dramatically apparent in the Oklahoma City tornado. Eleven of the deaths occurred in mobile homes, but less than 100 mobile homes were damaged by the tornado, in comparison with several thousand permanent homes. Specific figures for the number of people in each kind of housing are not available for the damaged structures, but a conservative estimate is that the death rate in mobile homes was more than one person per 10 units while the death rate in permanent homes was less than one person per 200 units. Thus, the risk to mobile home residents was at least 20 times as great as the risk to permanent home residents in the Oklahoma City tornado.